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Omnia-6fm User`s Manual v1.00

1. Input Submenu Input Source Attack Input Gain Left Release Phat Bass Input Gain Right Make Up Gain Warmth Master Gain Gate Thresh Stereo EXP Input Mode RTP Speed High Pass Filter RTP Level Limiter X Over Phase Rotator Super Low Gain Pre emphasis ML AGC Low Gain Invert Both Attack Mid Low Gain Mid High Gain Release Make Up Gain Gate Thresh Parameter RTP Speed AGC Drive RTP Level Attack Release Make Up Gain MH AGC Gate Thresh RTP Speed Attack Release Make Up Gain RTP Level Gate Thresh AGC In Out RTP Speed RTP Level AGC X Over Low Gain Mid Low Gain HF AGC Mid High Gain Attack High Gain Release Super High Gain Make Up Gain Gate Thresh RTP Speed LF gt ML X over Freq RTP Level ML gt MH X over Freq MH gt HF X over Freq HF gt SHF X over Freq SH AGC Attack Release Make Up Gain Gate Thresh RTP Speed RTP Level AGC Mixer Low Band Mid Low Band Mid High Band High Band Super High Band Super High Gain Clipper Silk High Gain Comp Clip Drive Parameter Output Submenu Peak Level Left Peak Level Right Bypass BS 412 Limiter In Multiplex Pwr Level De emphasis Output Sample Rate Parameter Encode Submenu Composite 1 Composite 2 SCA Level Pilot Injection Pilot Phase Separation SL Limiter Attack Release Hold Thresh Limit Thresh LO Limiter Attack Release Hold Thresh Limit Thresh ML Limiter Attack Release Hold Thresh Limit Thresh
2. MH Limiter Attack Release Hold Thresh Limit Thresh E E S E HIl Limiter Attack Release Hold Thresh Limit Thresh SH Limiter Attack Release Hold Thresh Limit Thresh APPENDIX A CE Declaration of Conformity Supplementary Information for our European Users CE Declaration of Conformity Application of Council Directives 93 68 EEC CE marking 73 23 EEC safety low voltage directive 89 336 EEC electromagnetic compatibility Standards to which conformity is declared EN50081 1 ENS50082 1 Manufacturer s Name Omnia TLS Corporation Manufacturer s Address 2101 Superior Avenue Cleveland Ohio USA Type of Equipment Audio Processor Model No Omnia 6 Serial No Year of Manufacture 2001 I the undersigned hereby declare that the equipment specified above conforms to the above Directives and Standards Place Cleveland OH USA 44114 Date hly 19 2001 Signature Full Name Frank Foti on file Position President CE Mark Conformance July 19 2001 Omnia TLS Corp 2101 Superior Aveme Cleveland OH USA 44114 Supervision and summary by Frank Foti 1 0 Introduction 1 1 Scope This record is intended to document the Omnia audio processor conformance with Council Directives 93 68 EEC CE marking 73 23 EEC safety low voltage directive 89 336 EEC electromagnetic compatability Testing was conducted during the period DATE 1 2 Purpose Testing was performed to e
3. Version 1 00a 13 Remote Control Session via Network Indicator LOUDNESS MONITOR An exclamation mark inside a yellow 6 20 25 32 40 so 63 ODULATION triangle will show up in the lower left corner of the Main Menu screen when a Network remote session is in progress A remotely connected network session has priority over local control of the front panel so during a Network remote session the Main Menu will be grayed out Select and modify processing presets here Omnia 6 Main Menu The triangle with exclamation mark signifies that a TCP IP Remote Control session is active There is no front panel indication shown when a serial or modem based remote control session is in progress Headphone Level Control A standard 1 4 stereo headphone jack located at the lower left corner of the front panel allows the processed signal to be monitored and a Headphone volume level control is available in each submenu When the headphone volume control slider is highlighted clicking changes the jog wheel into a headphone volume control Once the headphone volume is adjusted to your liking clicking the jog wheel exits the volume adjustment mode returning the jog wheel back to Highlight Mode Note The headphone amplifiers are fed from the same high quality D to A converter as the analog outputs Therefore the overall Headphone volume will also be affected by the setting of the Peak Output Level controls in the Output Menu 14 Omni
4. High Pass Filter In most FM systems subsonic frequencies should usually be rolled off to prevent difficulties with certain exciters and STL systems The Omnia6 fm has a third order 18dB Octave high pass filter with five selectable cutoff frequencies from 60 Hz down to 20 Hz The factory default is Out which means that frequencies down to around 2Hz are passed through the system without attenuation You may select one of the other values that may be more appropriate for your system Phase Rotator This section consists of three cascaded second order 200 Hz allpass filter sections Phase Rotators also known as Phase Scramblers are commonly utilized to make asymmetrical waveforms such as voice more symmetrical This ensures that clipping occurs equally on positive and negative peaks making better use of the symmetrical nature of FM modulation Phase rotation can make talent voice sound cleaner but since it disturbs the phase integrity of musical signals music might sound more faithful to the original source if phase rotation is reduced or not used at all The four available settings Off 1 2 3 allow you to select how many sections if any are active Selecting higher numbers will result in a steeper phase shift slope at the design frequency of 200Hz You should always choose the Phase Rotator setting that sounds best in your system Off can be chosen if previous phase rotation has been performed in your system in a mic processor for exampl
5. OMNIA 6FM Broadcast Audio Processor Installation and Operation Manual Version 1 00a January 2002 A Telos Company Omnia e 2101 Superior Avenue Cleveland Ohio 44114 USA TEL 1 216 241 7225 e FAX 1 216 241 4103 e Email info omniaaudio com www omniaaudio com Omnia Europe e Johannistrabe 6 D 85354 Freising Germany TEL 49 8161 42467 e FAX 49 8161 42402 e Email europe omniaaudio com www omniaaudio com Manual Update Notification Due to the dynamic nature of audio processing products this manual and all future manuals will be considered as preliminary documentation Audio Processing is an art form that we take very seriously As part of our dedication to this science we will continue to update both the product and its documentation based on continued research field experience and valued customer input We strongly encourage our customers to visit our Omnia website for product enhancement announcements software updates manual updates and customer care bulletins The following URL listing has been included for your update convenience Manual Updates http www omniaaudio com support manuals manuals htm Installation Tips http www omniaaudio com support oinstall htm Tech Bulletins and Papers http Awww omniaaudio com techinfo default htm Tech Support Software Upgrades http Awww omniaaudio com support default htm Warranty http Awww omniaaudio com support warranty htm T
6. Output Peak Output Level De emphasis Output Sample Rate Multiplex Power Limiting Encode Composite Output 1 amp 2 SCA Level Pilot Injection Pilot Phase Separation Schedule Schedule List New Modify and Remove Load From Card Save To Card Current State System Port Baud Security Lev el Backlight Set Time 34 Pre emphasis where to insert 46 Set Date 34 4 cae Password a 5 FINE TUNING YOUR SOUND Lock Unit 34 Load Defaults 35 About Loudness and Listener Fatigue 49 Load From Card 35 Save To Card 35 Clarifying your Processing Objectives 49 Adjustment Procedure 50 Network 36 Mac Address 36 Meter Displays 51 IP Address 36 AGC Metering 51 Gateway 36 Limiter Metering 51 Subnet Mask 36 Interpreting the Meters 52 Save Changes 36 Reboot Display 37 About Factory Presets 53 Test Broadcast 37 Loading a Preset 54 Parameter Editing 55 Security Config 37 Adjusting the Wideband AGC 56 Adjusting AGC Crossovers 58 Adjusting Multiband AGC s 59 Adjusting the AGC Mixer 60 3 THE OMNIA 6FM AND AUDIO Adjusting The Enhancers 61 PROCESSING Adjusting the Limiters Crossover 62 Adjusting the Multiband Limters 63 Process Block Diagram 39 Adjusting the Final Mixer Lim Mix 64 Wideband AGC 40 Adjusting the Clippers 65 Phase Linear Crossovers 40 Adjusting the MPX Power Limiter 66 Five Band AGC 40 Enhancer Section 40 Saving Naming and Deleting Presets 68 Deep Bass EQ 41 Saving Presets 68 Phat Bass EQ 41 Renaming and Deleting Pres
7. When the Omnia is operated with its chassis top cover removed you are exposed to potentially lethal voltages and high speed rotating fan blades Before attempting to make voltage measurements be forewarned that the power supply heat sinks are connected to the AC power line The LCD back light inverters the two large black modules on the front panel controller board have an output of over 1 200 volts AC with the LCD back lights off and in excess of 600 volts with the back lights on Do NOT attempt to measure them Avoid these areas whenever the AC power cable is attached to the Omnia Never attempt to make measurements when the power supply s safety cover is removed or near the LCD inverters on the front panel controller PC board Be forewarned that the two fans present a serious hazard to fingers tools and meter probes The fan blades rotate at high speed and have very sharp edges They can quickly and easily remove a fingertip gee how do we know this Coming into contact with a rotating fan blade will cause serious injury When reinstalling the top cover make certain that all thirty screws are replaced and that they are tightened to a snug fit Operating the unit with its cover removed or without all of the retaining screws will void your warranty and may compromise the ability of the Omnia to operate in high RF environments Narrowing down problems When actually troubleshooting your Omnia 6 try to ascertain some prelimin
8. E e Location of PCMCIA memory card containing the DSP code Software enhancements that are contained on the rear panel PCMCIA memory card can be installed without taking the Omnia 6 out of the equipment rack To install a new card please follow these steps 1 Ds Remove the Omnia 6 from service Make certain that no power is applied to the unit Remove the present card by pressing in on the black card eject button for the TOP card slot Set the old card aside Install the new card making certain to insert it with the Omnia label side facing UP Push the card in until the card is fully seated and the black card ejector has popped back out Return the Omnia 6 to service Omnia 6 Use and Installation Guide Version 1 00a 109 110 Location of PCMCIA memory card containing the front panel user interface Software enhancements that are contained in the front panel PCMCIA memory card must be installed internally on the front panel display controller board itself The display controller card has its own PCMCIA memory card containing the front panel user interface program and its enhancements To install a new card follow these steps 9 Remove the Omnia 6 from service 10 Make certain that no power is applied to the unit 11 Remove all 30 top cover screws and set them aside 12 Remove the lid and set it aside 13 Remove the front panel memory card by fully depressing the card eject button see below 1
9. a common response is that something is wrong with the on air sound Microphone processing can be a very important part of your overall station sound but it must always work in harmony with the main on air processing There are many good microphone processors available including Omnia s own ToolVox More information on the Omnia ToolVox Mic Processor can be found on the Omnia website at www omniaaudio com An Important Word About Time Delay A question commonly asked about Omnia 6fm is How much time delay does it have The answer Not 7 enough to drive your DJ s crazy Certainly there is reason for concern about the propagation delay through any digital transmission device audio processors included We have measured the propagation time delay the amount of time it takes for the audio signal to travel from the input of Omnia6 fm to the output at approximately 9ms at 1khz This is enough for a slight voice character coloration to be audible to the person speaking but usually not enough to be a problem for talent monitoring off the air If there is additional delay added to the system such as a Digital STL the cumulative delay may become excessive and cause discomfort for the on air talent Real world tests conducted by Jeff Goode in Indianapolis determined that a slight echo may begin to be heard at 10 15ms and that anything above 25 30 ms is usually too annoying to talent for monitoring off air Operating Levels Prope
10. and adjust methodically Increasing Loudness Try to resist the temptation to just crank up the aggressive processing sections like the limiters Those will add loudness of course but usually at the cost of quality Many times building a little more RMS level in the AGC sections will do the trick instead and with no obvious sonic penalties The following are some suggestions on where to begin to make changes We suggest that you them in the order described Increasing loudness can be accomplished in four ways 1 Alter the following parameters in the AGC sections e Increase the AGC Drive to the WB wideband AGC section e Increase the Drive to each band of the Multband AGC in the AGC XO crossover screen or reduce set to lower numbers the attack time of the WB AGC section causing an increase in activity in the Multiband AGC sections e Increase the Release time settings in each band to make it operate faster e Increase the amount of Make Up Gain in each band 2 Modify the Multiband Limiter sections 70 Omnia 6 Use and Installation Guide Version 1 00a 71 e Increase the Drive to each section using the controls in the Limiter XO screen e Increase the Release time settings in each band so that they operate faster e Set the Hold threshold to a lower value 3 Drive the Clipper sections harder 4 A combination of the above steps but in small increments It might sound crazy but it s true In this situation resist t
11. but setting the input level for less headroom higher meter indications is strongly discouraged Once the desired gain is reached click the jog wheel to accept and use that value This returns the jog wheel to Highlight Mode Highlight and click Input Gain Right and adjust it as in steps 3 and 4 Unless the input source is not balanced both Input Gain controls should be adjusted to the same value Rotate the jog wheel until the Home icon is highlighted Click to return to the main menu All of the Omnia 6fm s software parameters are set in a similar fashion using the jog wheel in Highlight Mode to scroll through menu items and parameters Clicking a highlighted item selects it when that item is a control the jog wheel adjusts the value or level Clicking accepts the value or level and returns the jog wheel to Highlight Mode Note Changing any parameter value changes the Omnia 6fm s audio output characteristics in real time so that all adjustments can be auditioned as they occur 16 Omnia 6 Use and Installation Guide Version 1 00a 17 The Menu Tree The menu tree for the Omnia 6fm is shown in the following two pages The seven main menu items are bold for clarity with their branching parameter choices shown in the order in which they are encountered in the menu system The first four menu options and their branches are shown below Rename Current ave Current As Process Menu wee jH Haee
12. right input Flr Audio failure left output Flr Audio failure right output In the absence of an audio source these Audio failure messages are normal Note that the Omnia s audio failure trigger level is 37 5dBFS and the signal must remain at or below that level in order for the silence detect algorithm to time out It is possible to see these messages during normal programming if the audio input level falls below 37 5dBFS and remains there until the audio fail algorithm times out Audio Restoration Alarm Approximately five seconds after audio has been restored to levels above 37 5dBFS the following messages will be seen Flr Audio restored left input Flr Audio restored right input Flr Audio restored left output Flr Audio restored right output Note that it is possible for there to be audio Output failure messages but no audio nput failure message This means that the unit is detecting applied audio at its Inputs but that there is no output from the DSP chain From the perspective of signal flow the Input meters follow the input level adjustment controls Input Menu This is also where the input to the Input Audio Failure comes from 102 Omnia 6 Use and Installation Guide Version 1 00a 103 Diagnostic and Error Messages Work Insert card to continue non fatal error The operating system cannot see the rear panel PCMCIA memory card Turn power off and make sure that the card is fully se
13. 2001 16 10 33 a Load Image ATA If the Network Configuration has been changed from the factory defaults a second screen will appear when the unit does a warm boot to load the network parameters Telos FrontPanel 12 1 0 BootLoader v0 7 010 Copyright 1997 2001 Accelent Systems Inc Built May 24 2001 16 10 33 Fast Warm Boot After approximately ten seconds audio will be present from the analog composite and headphone outputs The AES EBU output becomes usable at this time however full initialization of the port is not complete for several more seconds After 25 to 30 seconds the Meter and Main Menu displays will appear on the left and right LCD screens respectively At this point the Omnia 6 is fully operational Omnia 6 Use and Installation Guide Version 1 00a This page intentionally left blank to maintain pagination Omnia 6 Use and Installation Guide Version 1 00a Chapter 2 The Omnia 6 User Interface Now that your Omnia 6fm is rack mounted connected to a program audio source and turned on you re ready to learn how to operate it This chapter covers the Graphical User Interface your window into the Omnia 6fm processor A front panel jog wheel with integral push switch and twin Active Matrix Color LCDs make up the Omnia 6fm Graphical User Interface The right hand screen is the Menu Display and it shows the menus submenus and user adjustable parameter settings Also at the top of this s
14. AC wall outlets extension cords or integral convenience outlets as this can result in a fire or electric shock hazard Object and Liquid Entry Never push objects of any kind into this product through openings as they may touch dangerous voltage points or short out parts that could result in a fire or electric shock Never spill liquid of any kind into the product Accessories Do not place this product on an unstable cart stand tripod bracket or table The product may fall causing serious damage to a child or adult and serious damage to the product Any mounting of the product needs to follow manufacturer s installation recommendations A Product and Cart Combination should be moved with care Quick stops excessive force and uneven surfaces may cause the product and the cart combination to overturn Servicing Refer all servicing of the product to qualified service personnel Damage Requiring Service Unplug this product from the AC wall outlet and refer servicing to qualified service personnel under the following conditions When the AC plug is damaged If liquid has been spilled or objects have fallen into the equipment If the product has been exposed to rain or moisture If the product does not operate normally following operating instructions If the product has been dropped or damaged in any way When the product exhibits a distinct change in performance This indicates a need for service Replace
15. C 4 SSS a maintain Schedules Daypart Tables A schedule is used to automatically load or change presets according to the day and or time of day The start day can be any specific day of the week weekdays M F weekends S S or every day All All dayparts must end within a 24 hour period MON 2 20 AM 1 00 AM muscle1 Current State Over 450 individual events can be E Enabled programmed within a 7 day interval O Disabled HEADPHONES Schedule Submenu Schedule List Previously saved Schedule files are listed in the window To select a schedule highlight and click on the schedule name Omnia 6 Use and Installation Guide Version 1 00a 31 32 New Used to create a new Schedule Highlight and click on New to open the Modify Schedule window and create a new Daypart Schedule Modify and Remove Used to modify or remove an existing schedule Highlight and click on the Schedule List then highlight and click on the Daypart Schedule you wish to modify Highlight and click on Modify or Remove Modify will open up the Modify Schedule window and allow you to modify the settings of the selected daypart Remove will bring up a confirmation dialog asking if you want to delete the selected daypart Answering Yes to the prompt permanently deletes that Schedule from the system memory Load from Card Retrieves Schedule daypart data stored on the Omnia PC Card This operation will restore any dayparts that were previously saved
16. Installation Guide Version 1 00a 35 36 Network Network configuration 0050c 247001 Opens up a window to set the Ethernet communications protocols IP address default Gateway and 195 13 253 111 Subnet Mask info Make sure to Gateway Save Changes before exiting this IP address 195 13 234 45 window There are also options to allow you to Save Changes to the network settings Reboot Display 255 255 255 240 front panel only and send a Test Broadcast packet out to the connected Return to prior screen T network HEADPHONES Network Submenu MAC Address The factory assigned twelve digit hexadecimal hardware address of the Omnia 6 Ethernet interface IP Address The customer assigned TCP IP address of the Omnia 6 Ethernet interface See your IT department if you aren t certain how to configure this parameter Gateway The gateway setting must match your network gateway See your IT department if you aren t certain how to configure this parameter Subnet Mask The subnet mask setting must match your network gateway See your IT department if you aren t certain how to configure this parameter Save Changes After changes have been made to the network configuration they must be saved in order to be able to be recalled at next power up 36 Omnia 6 Use and Installation Guide Version 1 00a 37 Reboot Display After network changes have been saved in the above step the front panel must be rebooted in order to
17. Limiter 1 48 KHz e ITU BS 412 Multiplex Power C 96 KHz Limiter C Sync to Input E Sync to External Left Channel Analog output lavel adjustable Toles between 0 0 and 22dBu 22 to 0 dBFS HEADPHONES Output Submenu Peak Output Level The left right peak output level adjustment is done in a similar manner as the setting of the input levels These level settings take place in the digital domain and before any D A converters Therefore the output level settings affect the digital AES EBU output and the analog outputs including the headphones The control range is from 0 dBu 22 dBFS to 22 dBu OdBFS peak output level This level is normally set to the maximum input level or just below it of the device that the Omnia 6 is driving STL transmitter etc Omnia 6 Use and Installation Guide Version 1 00a 27 28 De Emphasis The Left Right outputs are pre emphasized under normal circumstances such as when feeding an outboard stereo generator or discrete microwave studio transmitter link The same applies when feeding a digital exciter from the AES EBU output These outputs can also be de emphasized for installations that require a flat frequency response as is the case when feeding other types of studio to transmitter links The factory default de emphasis setting is 75 us To change the De Emphasis setting rotate the jog wheel to highlight one of the three choices Off 50 us or 75 us Click the jog wheel to set the de em
18. Products Omnia products are to be used with registered protective interface devices which satisfy regulatory requirements in their country of use Omnia 6 Quick Start Setup Guide We know that you re probably in a hurry to get on the air with your new Omnia 6 If you have technical expertise and previous knowledge of audio processor fundamentals using the following Seven Point Quick Start Checklist will get you up and running as quickly as possible Please refer to the remainder of the Operating Guide for additional information Refer to the following drawing for the location of the various connectors associated with the installation AES EBU 10 100 plat SINC F 9u lt IN COMP Sa ey ETHERNET 1 CONTROL k Ca Ona opo EJ mwa UNIVERSAL POWER INPUT ENUE 100 240VAC P 19KHZ T ia KH OSITE OUTPUTS 2 ouT sc SA INPU ANALOG INPUTS ANALOG OUTPUTS RIGHT LEFT RIGHT eee Omnia 6 Back Panel Connections 1 Install the Omnia 6 in the equipment rack using at least two rack screws If only two screws are used they MUST be in the bottom holes of the rack ears 2 Connect AC power to the unit and turn on power using the rear panel power switch 3 Connect the audio inputs that are appropriate for your installation 4 Navigate to the Input Menu and select the Analog or AES EBU input If your audio source is providing an audio feed you should see meter activity o
19. The Remote Control link for your Omnia6 fm can take several forms Dial up modem RS 232 serial and TCP IP over 10BaseT and 100BaseT networks can be utilized Using any of these options requires the Omnia 6 Remote Control application that can be downloaded from http www omniaaudio com the Telos Omnia website The setup and operation of the Remote Control software application is covered in detail in Chapter 6 RS 232 Connection DB 25F RS 232 ted i q jj ee ae This connector serves two important purposes It can be used for a local bi directional computer connection with Omnia 6 Remote Control or it can be used for troubleshooting and error code resolution In the former case Omnia6 fm Remote Control software is utilized In the latter any terminal emulation program can be used In either Omnia 6 Use and Installation Guide Version 1 00a 5 case you must use a standard straight through serial cable not a null modem cable between the RS 232 connector and the serial port connector on the computer Typically a DB25 male to DB 9 or DB 25 female cable will be used with the DB 25 male end of the cable attached to the Omnia6 fm The setup and operation of the Omnia Remote Control application is covered in detail in Chapter 6 Interface Connection DE 9M Pin 1 Rear Panel Interface Connector for Remote Trigger Script Activation This connector is the interface to the Omnia s internal trigger script functio
20. a digital STL or exciter your Omnia 6fm s sampling rates must be set to match the lowest internal operating sampling rate used in any device which follows the Omnia 6 in the audio chain You will find these options in the Output Menu available selections are 32kHz 44 1kHz 48kHz and 96kHz Failure to select the proper output sampling rate will result in generation of overshoots Pre Emphasis Where To Insert Most digital exciters can generate pre emphasis within their DSP stereo generator This is unnecessary when using an Omnia 6fm which provides not only the proper pre emphasis for any region in the world but maintains excellent peak control of the pre emphasized signal so that no overshoots occur Using pre emphasis in the digital exciter instead of that built into your Omnia 6 will result in degradation of performance Here is some background in the context of operating in a complete digital environment e Most exciter manufactures recommend the use of their own pre emphasis network If this is done incoming audio data from the processor must be de emphasized before it reaches the exciter Why perform the emphasis function twice Also and more importantly if the pre emphasis phase delay is not exactly the same as the previous de emphasis in the processor overshoots will occur Therefore it is far more advantageous to employ pre emphasis only once in the Omnia 6fm and set the exciter to accept a flat input which greatly reduces th
21. activates Trigger Script 8 PIN 4 activates Trigger Script 6 PIN 5 is connected to ground PIN 6 activates Trigger Script 2 PIN 7 activates Trigger Script 4 PIN 8 activates Trigger Script 7 PIN 9 activates Trigger Script 5 Each pin that is to be used must first be programmed with a trigger script for the desired Go High and Go Low logic To execute the Go Low script a trigger input pin is connected via a sustained contact closure to pin 5 ground To execute a Go High script the ground is removed from that pin Each of the trigger pins 1 2 3 4 6 7 8 9 is thus connected through a switch or relay to the Omnia 6 s ground on Pin 5 Let s review what we created for the example we showed you under Using the Script Editor Whenever pin 1 is held low the contact or switch is in a closed state the Omnia 6fm will switch to and stay in mono mode no Pilot and only the left input channel is used When the pin 1 contact is subsequently opened the Omnia 6fm will switch back to and stay in stereo operation pilot on and both left and right input channels being used as long as the contact is open One Way Script Functions You may also create scripting functions that do NOT return to another value when the remote contacts are opened To do this you use the Go LOW script only and do not put any entries into the Go HIGH script Two possible uses for this very useful Go LOW Only Trigger Script trick are periodically s
22. also found on these submenus These are generally set once and forget selections or parameters usually adjusted during installation and then left alone In fact they are called System parameters and are not saved with a Preset Therefore you must save them as a System Configuration using the Save To Card option in the System submenu 20 Omnia 6 Use and Installation Guide Version 1 00a 21 Encode Encoding Separation Composite This submenu contains the adjustments for Eiseres Output 1 Output 2 the DSP based Stereo Generator The DO 1aB e Output Levels for Composite Outputs 1 0 548 and 2 the Stereo Pilot Injection Level and E Mono Phase and the SCA Injection Level and Stereo Separation parameters are SCA Pilot Pilot Level Injection Phase adjustable here Like the Input and Output Cc d P f gt menu choices these menu items are typically adjusted during installation and are saved as a System Configuration see above Return to Main Menu HEADPHONES Encode Submenu Schedule Schedule The Omnia 6 can automatically load presets from the PC Card by date and or time The Schedule submenu allows the user to enable or disable the Daypart Scheduler function as well as to create modify save and recall custom preset MON 2 20 AM 1 00 AM muscle1 changing schedules Current State Enabled Disabled HEADPHONES Schedule Submenu Omnia 6 Use and Installation Gui
23. always available free of charge through the Support page of our web site www omniaaudio com 76 Omnia 6 Use and Installation Guide Version 1 00a 77 Checking the Version Number of your Omnia 6 Remote Control Program You can check the version of your Omnia Remote control program by clicking on the About option under the Help menu option About Omnia Remote Control xi Omnia Remote Control Version 1 0 0 Copyright 2001 lt lt The Omnia 6 remote Control Version number is shown here Omnia Concept by Windows Application by Serial communications by System Software by Frank Foti Maris Sprancis Armands Valdmanis Rob Dye Cyril Martin Frank Foti Jeff Keith Cyril Martin Bill Mohat Hardware by Frank Foti Rob Dye Cyril Martin Jeff Keith Signal Processing by The Omnia 6 Remote Control About Screen While you are configuring the data for the various connection types the Omnia Remote Control software can be run without having to connect it to the Omnia 6fm Start the Omnia6_remotel exe program As mentioned earlier when the program is run for the first time you will get an error message saying No connection database creating new database This is normal No connection database creating new database This message is normal the first time the program is started Omnia 6 Use and Installation Guide Version 1 00a 17 78 Under the Options Menu select Edit Connection A
24. be used to manipulate the Daypart Scheduler Using The Trigger Script Editor A Trigger Script is written using the Trigger Interface Script Editor which is contained within the Omnia Remote Control software The Script Editor runs in a separate window from the Remote Control window The Editor window is opened under the Options menu Edit Trigger Scripts To open the Script Editor window the computer running the Remote Software must be connected to and communicating with the Omnia 6fm Starting the Script Editor Options Edit Trigger Scripts opens up the Script Editor window The eight radio buttons along the left side select which trigger script number to display and edit The top edit box shows the script for the Trigger HIGH Command Script contact open for the selected input The bottom edit box shows the script for the Trigger LOW Command Script contact closure for that input Once a script has been entered clicking the Test button checks the script syntax and if correct sends the displayed script to the Omnia 6fm for immediate execution Use the command line window and or any alert dialogs that pop up to view the success or failure of the script Note that executing the script in this manner does not result in the script being downloaded or saved as a trigger script it is simply run once to see if the script as written actually works The buttons along the bottom of the window load save or download the current scripts being e
25. cause unpredictable operation and PC Card data damage AC Environment The Omnia 6fm subsystem is microcomputer based Therefore it requires the same clean AC environment as any modern computer system does Even though the Omnia 6 is equipped with quite robust internal AC input transient suppression we recommend that external transient suppressers voltage regulation or an Uninterruptible Power Supply UPS be employed This recommendation becomes even more important when installing the processor at a transmitter site where there can be heavy transients on the power lines These unwelcome events can be caused by anything from load switching to lightning strikes on a nearby tower Therefore we ask that you give your AC power environment and installation practices thorough consideration before plugging in your Omnia6 fm unit 2 Omnia 6 Use and Installation Guide Version 1 00a Installation amp Connections Throughout this section reference is made to software parameters These are part of the Graphical User Interface which is covered in detail in Chapter 2 Rack Mounting The Omnia 6fm requires 3RU 5 25 37 mm of rack space Rack mount the unit using four rack screws If only two screws are going to be used they should be in the bottom holes in the Omnia front panel No other two screw mounting arrangement will prevent distortion of the front panel casting Adequate ventilation should be provided and it is always good engineeri
26. determines if very fast dynamic control is required Faster time constants are used only when necessary and then only under certain conditions that are dictated by the density of the signal A built in release Hold algorithm allows the limiter to rest momentarily in order to reduce IM distortion For maximum clarity and punch the system uses different algorithms for each of the bands The super low low and mid low bands use a feedback limiter configuration producing a larger warmer sound on the lower frequencies The mid high high and super high bands utilize a feedforward limiter design that maintains a more open natural and musical texture on higher frequencies The user may adjust the individual limiter thresholds their hold threshold values as well as each band s attack and release times The limiter behavior has been optimized by fixed crossover frequencies of 85Hz 330Hz 1kHz 3kHz and 7 5kHz Non Aliasing Distortion Controlled Final Limiter Clipper Typically the clipper section is where previous attempts at DSP based clippers have failed The term digital grunge and that digital sound came from early DSP based attempts at simple peak clippers Omnia 6 s proprietary DSP based clipper algorithm generates no in band aliasing artifacts and reduced audible processing distortion while producing a clean and very loud signal Users have reported that this implementation exceeds the smoothness of a well designed analog limi
27. highlighted Click the jog wheel to save the new preset If you wish to cancel the operation highlight the X and click The operation will be canceled and the Preset Menu again displayed To Delete the selected preset highlight and click on Delete You will be asked to confirm the destruction of the selected preset Highlight and click on Yes to go ahead and delete the preset or No to cancel and return to the Rename and Delete screen Getting the Sound You Want If you believe that you re in a loudness war and you need to react aggressively here are some suggestions that should help you achieve that goal Conversely if you have the rare luxury to strive for increased sound quality we have suggestions for you too Omnia 6 is designed to minimize the impact of the quality vs loudness trade off We recommend that before starting the process of cranking it up just for the sake of raw loudness try to decide what sonic characteristics you feel are lacking in your station s sound In many instances it s not just about increasing the drive to the limiters the clipper or the composite clipper It can be as simple as creating an illusion of added loudness by changing a single time constant parameter There are even known instances where the use of stereo enhancement created the necessary apparent loudness Please don t bite at the first temptation to crank the system Sometimes the old adage of less is more really applies Before delving into alt
28. kHz better than 50 dB Two EMI suppressed female BNC floating over chassis ground 5nF at 10 ohms source impedance 100 feet 30 meters RG 58A U System Remote Control Remote Control Methods Configuration Modem Modem direct serial or 10 100BaseTX Ethernet Supplied PCMCIA modem with pop out X jack connector or any Hayes command set compatible external modem Direct Serial TCP IP Ethernet Connectors Standard RS 232 no hardware handshaking employed Baud rates of 9 600 19 200 and 57 600 supported Emulates a Telnet session RS 232 port EMl suppressed DB 25 female connector Industry standard EMI suppressed RJ 45 connector for Ethernet Remote Control Trigger Interface Configuration Connector Control Power Requirements Voltage Connector Internal Power Supply Environmental Humidity Dimensions Shipping Weight Eight 8 inputs RS 232 level compatible Software sensing of both go high and go low transitions Inputs are protected to 15 VDC EMI suppressed DE 9 male User programmable using built in Trigger Script feature in included Omnia 6 Remote Control software Virtually any parameter of the Omnia 6 may be programmed to change through this interface Miscellaneous 100 250 VAC 50 60 440 Hz 50VA EMI suppressed IEC male Detachable 3 wire power cords supplied for US and European use Overvoltage and short circuit protected Meets EN55022
29. listed the following syspara numbers are not applicable to the Omnia 6fm 2 Analog Gain 19 Editing Mode 28 Tilt Freq 14 LED Source 20 Current State 30 Meta 15 Backlight 26 Asym Mod 31 LPF Freq 16 Contrast 27 Tilt Eq 32 LPF Freq 92 Omnia 6 Use and Installation Guide Version 1 00a 93 Setting New Syspara Values To find the new value you wish to use for a particular Syspara sysparavalues lt para index gt Lists all the possible values for any parameter Example sysparavalues 9 lt enter gt Displays a table listing the possible Pilot Level values To set a new value for a Syspara syspara lt syspara index gt lt sysparavalue index gt To reset all System parameters back to their factory defaults sysdefaults Restores the system attributes back to their factory defaults To save all System settings to the rear panel memory card syssave Saves the system attributes to the Omnia PC Card To load the saved setting from the rear panel memory card sysload Loads the system attributes from the currently inserted Omnia PC Card Using the Script Editor Now that the scripting commands have been defined let s put them to work to create a Trigger Script We ll use one of the most commonly requested operations that FM broadcasters want to easily accomplish switching between mono and stereo operation This procedure can of course be done by manually using the Omnia 6fm front panel controls to turn off t
30. make the changes active in the network hardware Test Broadcast The Test Broadcast button sends a series of UDP packets out over the network interface The message contained in the packets is An Omnia Broadcast Datagram These test packets may be used to troubleshoot routing and other issues on the customer s network Security Config Under the Security Configuration screen you can assign what submenus may be accessed at password Levels 1 and 2 the lesser security levels The Level 3 security level is the Master security level and ALL submenus and functions may be accessed at that level Enable for E Level 1 C Level 2 E Preset C Schedule C Process C Encode O Input C Output C Stealth Mode When Locked HEADPHONES Security Config Submenu The Stealth Mode When Locked option causes the front panel processing bargraph metering to stop showing processing activity and the selected preset name to be hidden from view when the Omnia is locked Note that the Input and Output meters are still active in Stealth Mode Omnia 6 Use and Installation Guide Version 1 00a 37 38 38 This page intentionally left blank to maintain pagination Omnia 6 Use and Installation Guide Version 1 00a 39 Chapter 3 The Omnia 6fm and Audio Processing This section presents an overview of the Omnia 6fm processor Refer to the block diagram shown on the Process submenu to provide a functional order to the various proce
31. many different processing functions at different times The processing display bargraphs may appear to indicate different kinds of operation with different program material This behavior is primarily based on dynamic range differences in the applied program material For program material that is already processed or lacking dynamic range the bargraphs will indicate differently than with material that possesses a high degree of dynamic range This is because audio signals that lack dynamic range naturally or by previous processing will possess a lower peak to average ratio Conversely audio signals with a wide dynamic range possess a higher peak to average ratio The Omnia6 fm adapts differently to each case For program material that has low dynamic range or high RMS and low peak levels there will be more activity in the AGC sections and less activity in the Limiters This behavior is due to the AGC sections response to high RMS energy while the Limiters are reacting to lower peak energy Sometimes the Limiter section may not indicate any action at all especially on the top three bands For Omnia6 fm this is completely normal Examples of this behavior might be seen with heavily processed commercials or music or with music passages of sustained level A good example is the Aerosmith CD Pump This recording has very little dynamic range Try any up tempo selection from this disk and you will see the Wideband AGC section make initial adjustm
32. new window will open and a default New Connection option will be displayed Enter required information into each of the configuration boxes Edit Connection x New Connection m Properties Name New Connection Password p Port com 1 Phone Modem Init I Connect over Ethernet IP OK New Delete Cancel Edit Connection Menu in Omnia 6 Remote Control In the left side of the Edit Connection window will be the list of any connections that are currently contained in the connect dat configuration file The specific names in the list are derived from the information that was entered into the Name box when each connection was first set up In the Properties Window of the dialog box it s a good idea to edit the connection name to match the type of connection you wish to configure The three available connection types are e via Direct Serial e via Modem e via TCP IP Ethernet Connection names such as Serial if using the RS 232 port Network if using the Ethernet port or Dialup if using a modem may be used This naming convention is not mandatory but it will help keep things tidy if you decide to use Omnia 6 Remote Control to connect to several Omnia6 fm units Note Use New to create any additional connection entries Use Delete to remove any unused entries Select any entry in the connection list to edit its fields Use Cancel to exit without making changes To set
33. off operation Opening the switch or relay will then cause the processor to follow the go high script the unit switches to stereo pilot on operation Multiple operations including ones that are vastly more complicated than what we have presented here such as simultaneously changing to different presets when changing from stereo to mono can be completed at the flip of any one of the eight switches or relays connected to the Omnia 6fm And the eight relays or switches do not have to be switched locally commands can even be initiated by a network satellite when a receiver with contact closures is being used Different Ways to Use the Script Commands There are two methods of using the script we just created One is to use the scripts as Trigger Scripts responding to contact closures and opens as previously discussed The other involves integrating the scripts into the Omnia 6fm s daypart table Because the processor is flexible it allows one to use the same script Omnia 6 Use and Installation Guide Version 1 00a 95 96 for both options Initiating Trigger Scripts via the Interface Connector As we mentioned trigger scripts give the user the ability to tie a series of commands to a simple high low logic change occurring on a pin of the 9 pin D sub Interface connector on the unit s rear panel The pins on the Interface connector are assigned as follows PIN 1 activates Trigger Script 1 PIN 2 activates Trigger Script 3 PIN 3
34. operation such as Input and Output Gains Pre emphasis De emphasis etc These parameters would NOT be saved with individual presets but instead are saved using the Save To Card command on Omnia 6 Remote control or through the Save to Card option in the front panel s System menu To obtain a list of all System parameters you use the command sysparas which lists all of the adjustable parameters in a table format Example typing sysparas lt enter gt displays the following table 1 Input Source AES EBU 3 Input Left 0 0dB 5 Output Left 8 0dB 7 SCA Level 20 0dB 9 Pilot Level 10 0 11 Deemphasis 50uS 13 Analog Phase 1 15 Backlight 70 17 Headphones 8 0dB 19 Editing Mode EXPERT 21 Composite 2 8 46 V 23 Preemphasis n a 25 Mono Mode Stereo 27 Tilt Eq n a 29 HP Filter OUT 31 LPF Freq n a 33 BS412 OFF 35 Ave Power 82 37 Phase Rot 1 2 Analog Gain 0 4 Input Right 0 0dB 6 Output Right 8 0dB 8 Composite 1 3 98 V 10 Phase Adjust 0 0 deg 12 Preemphasis 50uS 14 LED Source 0 16 Contrast 50 18 Separation STEREO 20 Current State DISABLED 22 Input Phase NORMAL 24 Ctrl Port Baud 19200 26 Asym Mod n a 28 Tilt Freq n a 30 Meta n a 32 LPF Freq n a 34 Ref Headroom 12 36 WB AGC IN Each syspara is listed along with its currently assigned value ie 37 Phase Rot 1 Although
35. point for creating your signature sound Each signal processor section from the Wideband AGC to the Clippers can be individually selected and its parameters adjusted as required Once the processing is adjusted the Preset menu Save As function is used to save your newly edited factory preset to the PC Card as a new user preset See Chapter 5 Editing Presets for an in depth discussion of using this submenu to edit presets Input amp Output Submenus Input Gain Input Source Peak Output Level De emphasis Right arrg E Right E S Oo J lt Input Mode Output Sample Rate CO 32Khz ITU BS 412 Multiplex C 44 1 KHz Power Limiter C 48 KHz Pre emphasis Phase Rot HP Filter C Stereo E Off C Mono mE C Mono R O2 C Mono L R ot a Cope m Sync to Input OFF E Invert Both a E Sync to External Gain adjustable over a 30dB range i Left Channel Analog output lavel adjustable i between 0 0 and 22dBu 22 to 0 dBFS from 18 to 12dB HEADPHONES HEADPHONES Input Submenu Output Submenu These two submenus provide level adjustments for the left and right inputs and the absolute peak operating level of the outputs Note that the analog and digital Input and Output levels are affected equally by the settings of the Input and Output Gain controls respectively Choices governing the selection of the input audio source Analog or AES 3 signal mode stereo or mono and whether pre emphasis and de emphasis is applied are
36. processing algorithms will be updated to the new values almost instantly Modify Opens the Preset List window so a user preset can be renamed or even deleted Save Current Saves the current parameter settings to the PC Card overwriting any previous settings saved under the currently running user preset If the current preset started out as a factory preset but you changed some values the system will warn you that you cannot save your settings directly over a factory preset name Instead you must select the Save Current As option and assign your work a new Preset Name After doing so your new Preset will appear in the Preset list Omnia 6 Use and Installation Guide Version 1 00a 23 24 Save Current As Opens up a window so a new preset name can be entered Preset names can be up to 12 characters in length Rotating the jog wheel clockwise scrolls through the capital letters of the English alphabet first Rotating it counter clockwise scrolls through the numeric characters first and then through the lower case English alphabet Click the jog wheel to select a highlighted character to change Then rotate the jog wheel to step through all the possible characters Once the desired character is displayed click the jog wheel to select that character Rotate the jog wheel to select the next character and edit that as appropriate When the last character is reached click to accept the character and then rotate the jog wheel to highlight
37. remem HS een sed jH proar e es jH erore towne H prear E Heee Hae Heee Mid Low Mid Hig ae Heee ie Hee Mid Hig AIF E Heee rapier Pena Limiter uper Hig imiters me Hee me rere cers Paes Peak Levels Input Gain oo Input Source Hos emphasis 75 uS panes rene Peano De emphasis High Pass Fitter Input Mode Omnia 6 Use and Installation Guide Version 1 00a 17 18 The next three Menu Options are shown below along with their associated branches System Menu Port Baud ecurity Level Backlight Urre Time Current Date About ange Password Lock Unit oad Defaults dad From Card ave to Card Loe Encode Menu Output 2 SCA Level Fila Injection Pilot Phase Separation Config Lr Schedule Output Mode ave Changes oe eres Te m Schedule Lo Output Teal Mode REbOd quel Changes Broadcast Parameters Parameters Parameters Parameters Parameters IP address ave Changes Parameters Parameters oad From Card Parameters Parameters 18 Omnia 6 Use and Installation Guide Version 1 00a 19 Menu Items This section presents an overview of the seven submenus Preset Process Input Output Encode Schedule and System and their parameters The Menu Selections section start
38. requirements of EEC Council Directives 93 68 EEC CE marking 73 23 EEC safety low voltage directive 89 336 EEC electromagnetic compatibility Conformity is declared to the following standards EN5008 1 1 EN50082 1 Replace only with the same or equivalent type recommended by the manufacturer Dispose of used batteries according to the manufacturer s instructions A Lithium Battery Caution Danger of explosion if the lithium battery is incorrectly replaced Use of Shielded Cables In order to conform to the CE requirements for HF radiation shielded cables should be used for the audio and data connections For audio connections the cable shield should be connected to the XLR shell
39. same or equivalent type recommended by the manufacturer Dispose of used batteries according to the manufacturer s instructions USE OF SHIELDED CABLING To conform to the CE requirements for High Frequency radiation shielded cables must be used for all audio and data connections For analog and digital connections the cable shield MUST be connected to the XLR type connector shell which is at chassis ground potential Omnia 6 Users Guide Ver 1 00a NOTICES All versions of compatibility trademarks etc of hardware and software products not made by Omnia but mentioned in this manual or other accompanying material are informational only Omnia makes no endorsement of any particular product for any purpose nor claims any responsibility for its operation or the accuracy of its presentation Warranty registration and Software Updates Omnia 6 s operation is almost entirely determined by software A continuous program of improvement ensures that the product remains at the cutting edge In order to be notified of new software releases be sure to FAX or mail in the registration form Trademarks Omnia the Omnia logo and The Promise of Digital Delivered are trademarks of TLS Corporation Dorrough is a trademark of Dorrough Electronics Inc All other trademarks mentioned in this work are the property of their respective holders Copyright Copyright 1997 2002 TLS Corporation All rights reserved Published by Omnia
40. temptation to continuously fiddle with adjustments just moments after getting the system on the air Remember that you should evaluate the operation over time not moment to moment When it is time to adjust the Preset Worksheet we ve provided can assist in tracking your progress and establishing improved settings of operation unique to your stations While making changes to the system we recommend that you do not make hasty or radical changes Also do not make too many different adjustments all at once If too many parameters are changed at one time it is hard to determine which change made the difference you may hear That can be frustrating whether the change made your station sound better or worse Take your time In order for you to become comfortable with your new sound you should learn the limits of each control We suggest making changes in increments of no more than 0 5 dB or 1 dB or in 1 or 2 step increments Try turning different functions on and off Working this way you will be able to get a better feel for the sound that the Omnia 6fm is capable of producing on your station and with your programming Use the sleep on it method Spend time adjusting and then listening and when the system gets to a point where it sounds good stop While making changes to processing there does come a time when the ears become less and less sensitive to the adjustments you re performing Ears tire and that s why spreading the adjustm
41. 4 Re install the new memory card making sure that it is fully seated in the PCMCIA connector 15 Re install the Omnia lid using all 30 screws Tighten each screw snugly Failure to affix the lid with all 30 screws may compromise its susceptibility to RF energy as well as is electromagnetic radiation compliance certification 16 Return the Omnia 6 to service Memory card eject button al fees a e y Uy 7 Z Rear view of the front panel controller card with the Omnia 6 s top cover removed The PCMCIA memory card slot is shown empty 110 Omnia 6 Use and Installation Guide Version 1 00a 111 Obtaining Service e Omnia Customer Focus personnel are available in Cleveland Ohio USA Monday through Friday between 9 00 A M and 6 00 P M Eastern Time If outside the U S A see below e Before contacting Omnia Customer Focus please have the serial number of the unit located on a barcode sticker on the rear panel in this format 4700XXYYYY and a description of the symptoms problems ready for the technician e All units being returned to for service MUST have a Return Authorization RA number assigned to them first Units that are returned without a RA number will experience delays in service e Return the Omnia in its original shipping carton For best treatment shipping the Omnia in its original factory box protects it as well as possible Damage caused by improper packaging is not covered under your warranty e Loa
42. 6 Once loaded it can be modified as required to suite your tastes and processing goals The changes can then be temporarily used or they can be saved to the PC Card so they won t be lost Process Ba E E Wide Band Automatic Gain Control Processor Block HEADPHONES Process Submenu The Process submenu accesses the soul of Omnia 6 This is where comprehensive adjustments to the audio processing can be made We suggest that if you are somewhat inexperienced with audio processing adjustments you should use care and patience while in this section Unlike other processors the Omnia6 fm does not limit the range of adjustments that you can make It is essential that you know what your goals are before and during adjustments This section of the manual will help you do just that Upon selecting the Process menu a functional block diagram of the processing system appears on screen This block diagram not only indicates the architecture of the processing system but also provides direct access to the adjustments for each processing section As the jog wheel is rotated the different processing Omnia 6 Use and Installation Guide Version 1 00a 55 56 blocks are highlighted Clicking the jog wheel opens up the parameter window for that processing block Parameter adjustment is accomplished using the previously described method clicking the parameter to select it turning the jog wheel to adjust it and then clicking to save the sel
43. 70 dB 20 Hz 15 kHz Two EMl suppressed XLR male Pin 1 chassis ground Pin 2 is Hot Crystal Semiconductor CS4390 24 bit 128x oversampled Digital I O Stereo per AES EBU standard Crystal Semiconductor CS8420 Digital Audio Transceiver with 24 bit resolution software selection of stereo mono from left mono from right or mono from sum Automatically accepts sample rates between 32 and 96 kHz XLR female EMl suppressed Pin 1 chassis ground pins 2 and 3 transformer isolated balanced and floating AES3 standard 110 ohm impedance Stereo per AES3 standard Crystal Semiconductor CS8420 Digital Audio Interface Transceiver with 24 bit resolution Output can be configured in software for flat or pre emphasized response at 50 or 75 microseconds Output sample rates software selectable for 32kHz 44 1kHz 48kHz and 96 kHz XLR male EMl suppressed Pin 1 chassis ground pins 2 and 3 are transformer isolated balanced and floating Standard AES3 specified 110 ohm source impedance 22 0 to 0 0 dBFS software adjustable Output sample rate can be synchronized to the signal present on the AES EBU input or to the AES3 signal applied to the Ext XLR female EMl suppressed Pin 1 chassis ground pins 2 and 3 transformer isolated balanced and floating AES3 standard 110 ohm impedance External Sync Range Accepts sample rates from 32kHz to 96 kHz Used for synchronization of the Digital Output signal to an external refe
44. A slot Omnia 6 Use and Installation Guide Version 1 00a 1 Expansion Cards The Omnia 6fm also contains a second PC Memory Card that contains the software for the Front Panel This card has been pre installed at the factory and is located under the top cover on the right hand side of the Front Panel circuit board Please make sure the AC power is off and disconnected from the unit before removing the top cover and removing or replacing the card Important Note 1 The PC Cards used in the Omnia 6fm are not generic PCMCIA cards that can be bought in any local computer store They are cards that are specified by Omnia specifically for this product If you need a backup card please contact Omnia Customer Support to purchase an additional card Inserting a card of unknown origin risks damaging the Omnia or the cards and doing so will void your warranty Important Note 2 If you wish to operate the Omnia 6fm using a PCMCIA type modem you must use the supplied modem card from Omnia Other modem cards are NOT approved for use at this time We cannot provide technical support for any other modem card Typically any external Hayes compatible modem may be connected to the rear panel serial port See chapter 6 for more details on the Modem and the Remote Control Software Note The rear panel PCMCIA Memory Card must remain in the top slot unless you are prompted by the system to remove it Randomly removing the PC Card without system instruction may
45. B 6 B B E 8 6 B B E E 0 25 100 AGC LIMIT EFX OFF LINE OFF LINE HEADPHONES Omnia 6 Remote Control as it appears on your computer screen Software Installation Options There are two different options for installing Omnia6 fm Remote Control Neither makes permanent changes to your computer system or to your Windows registry so you may freely choose the one with which you are most comfortable The first recommended is to use the self installer version Omnia6 exe The other is simply putting a copy of Omnia6_remotel exe into the folder name of your choosing and running it from that location Using the Self Installer If you elect to use the self installer program Omnia6 exe by default it will place the executable file Omnia6_remotel exe into the folder C program files Telos_omnia omnia6 and place a shortcut to the program on your desktop Using standard Windows procedures run the Omnia6 exe program The install program installs Omnia 6 Use and Installation Guide Version 1 00a 75 76 Omnia6_remotel exe onto the computer s hard disk and places the program name Omnia Remote Control in the Start Menu The default location for the copied files is C program files Telos_omnia omnia6 When the program is freshly installed but has not yet been run Omnia6_remotel exe is the only file in the specified folder However the first time that the program is run it will create a small new file called connect dat whic
46. De emphasis CI Off E 50us O 75us Output Sample Rate C 32 KHz C 44 1 KHz C 48 KHz C 96 KHz C Sync to Input E Sync to External Left Channel Analog output lavel adjustable between 0 0 and 22dBu 22 to 0 dBFS HEADPHONES ITU BS 412 Multiplex Power Limiter Controls The concept behind the Multiplex Power Limiter is deceptively simple It watches the average power of the processed pre emphasized audio in the left and right channels and adjusts the audio density so that the peak to average ratio is controlled to the desired degree By turning on the multiplex power limiter and setting the control to 0 0dB compliance with the original standard is assured Raising the control to values above 0 0dB will increase the multiplex power as allowed in certain less restrictive countries The graph on the next page demonstrates the effectiveness of the power limiter algorithm 66 Omnia 6 Use and Installation Guide Version 1 00a 67 The graph below was captured from an Audemat DFMA2 measuring instrument It shows the analysis of a 30 minute segment of audio as processed by the Omnia 6 with the ITU BS 412 Multiplex Power limiter enabled and adjusted to the 0 0dB setting Note that at no time during the measurement interval does the average power exceed the zero dB reference line Segments of audio seen falling below the line were portions of talk programming and naturally occurring breaks in audio as would be seen in a normal br
47. EN55011 Level B Conducted Emissions EN61000 4 2 3 4 5 6 level 3 immunity compliant EN60950 VDE0805 IEC950 UL1950 BABT CSA C22 2 No 950 Approvals Full international safety approval CE marked MTBF 150 000 hours minimum per MIL HDBK 217F Operating Temperature 32 to 122 degrees F 0 to 50 deg C for specified operating voltage ranges 0 95 Relative Humidity non condensing 19 wide x 5 25 high x 16 deep 48 26cm wide x 13 335 cm high x 40 64 cm deep including connectors Unit requires three EIA rack spaces for proper mounting 35 Ibs 15 876 kg Telos Omnia Research and Development is constantly working to improve the quality of our products Actual operating specifications are subject to change or improvement without notice Warranty his Warranty covers the Products which are defined as the various audio equipment parts software and accessories manufactured sold and or distributed by TLS Corp d b a Omnia hereinafter Omnia With the exception of software only items the Products are warranted to be free from defects in material and workmanship for a period of two years from the date of receipt by the end user Software only items are warranted to be free from defects in material and workmanship for a period of 90 days from the date of receipt by the end user This warranty is void if the Products are subject to Acts of God including without limitation lightning improper installation or misus
48. EXT time you attempt to log in with Omnia remote control The Remote Control software allows multiple connection profiles to be created so that a mix of connection types Direct Serial TCP IP may be used This allows the program to easily support communicating with different Omnias at different locations connected by different means When all items have been entered select OK Note These connection settings are stored in a small binary file named connect dat located in the same folder as the remote program Omnia 6 Use and Installation Guide Version 1 00a 83 84 Establishing a Remote Connection To establish a connection with the remotely located Omnia 6fm return to the Options Menu and select Connect which brings up a list of connections you have defined Double click on the name of the desired connection or highlight it to select it and press OK The connection will be established after a short pause and you should see the bargraph meters become active when a connection has been established Omnia Remote WXYZ Omnia 6 File Options Help DIGITAL L INPUT R dBFS 36 30 ourpur 25 AGC Preset ROCKnROLL Omnia 6 Remote Control after connection is made Note that the currently selected Preset and the Omnia s actual System time are being displayed Use Cancel to leave the dialog box without making any connection You can choose to have the program automatically establish a connection by going to the O
49. Maximum Input Level 24 10 dBu 12 28V RMS Nominal Input Level A 13dBu input signal nets a 12dBFS input meter reading when the Input Gain Control is set to 0 0 dB Application of a 1 00 dBu input signal nets a 12dBFS input meter reading when the Input Gain Control is set to 12 dB NOTE when the Input Gain and Master Drive controls are set to 0 0 dB a 13dBu input signal results in an input level of 12dBFS anda Wideband AGC gain reduction of approximately 15dB Connectors Two EMl suppressed XLR female Pin 1 chassis ground and Pin 2 is hot A D Conversion Analog Audio Output Configuration Source Impedance Load Impedance Peak Output Level ref 100 modulation Stereo Crosstalk Connectors D A Conversion Digital Audio Input Configuration Connector Digital Audio Output Configuration Digital Sample Rates Connector Digital Output Level Digital Sync Input Configuration Sync input connector Crystal Semiconductor CS5360 24 bit 128x oversampled delta sigma converter Linear phase 21 7 kHz anti aliasing lowpass filter with 0 0025dB maximum passband ripple Left Right Discrete Stereo Electronically balanced floating and symmetrical Flat or pre emphasized response for either 50 or 75 microseconds 20 ohms 600 ohms or greater recommended balanced or unbalanced Adjustable from 6 dBu to 24 dBu peak into 600 ohms or greater load software adjustable gt
50. Omnia 6fm has been tested and approved by Telos Omnia We cannot ensure correct operation of any other modem card with the Omnia6 fm nor can we provide support for such non approved cards Remote Control Using a External Hayes Compatible Modem The Omnia supports nearly every Hayes command set compatible modem available Please note that in order to support the widest possible variety of externally connected serial devices the Omnia6 fm s RS 232 port does not support hardware or software handshaking This is of no concern and we are aware of no instances where this has prevented an externally connected modem from operating properly The externally connected modem will need to auto detect one of the Omnia s three rear panel serial port s baud rates 9 600 19200 and 57 600 Because the Omnia and the modem are both DCE devices you will need to use a crossover null modem cable between them Omnia 6 Use and Installation Guide Version 1 00a 79 80 Remote Control Using a Direct Serial Connection In the Edit Connection window create a New Connection and name it Then fill in the Password box the default password is tomtom lower case only The password may be changed at any time using the File Menu Change Password option Note that you must be connected to the Omnia in order to change the password and that the password change becomes valid the next time you attempt to log in with Omnia Remote control Select the COM port that your co
51. Preset Submenu 12 Omnia 6 Use and Installation Guide Version 1 00a 13 In all submenus with adjustable parameters rotating the jog wheel sequentially highlights each control or selection choice along with the Home icon and the Headphone level button In the Process submenu the parameter adjustment windows have an X Close Window icon in the upper right corner as shown in the AGC Mixer window below Highlighting this icon and clicking closes the window returning the user to the Process submenu one level above X Close Window Icon Omnia controls AGC Mixer Mid High Super High HEADPHONES AGC Mixer Submenu To change the selection in a multiple choice parameter highlight the desired choice with the jog wheel and click A filled box serves to indicate that a parameter choice is selected To adjust a rotary knob control like those shown in the AGC Mixer Parameter Window highlight the control and click The jog wheel now functions as a rotary control Rotating it clockwise adjusts the control up counter clockwise adjusts the control down The adjusted value is shown below the control The original value is retained in a different color until the jog wheel is clicked to make the new value permanent To cancel a control change return the jog wheel to the control s original value To apply a new level or value and return to Highlight Mode just click the jog wheel Omnia 6 Use and Installation Guide
52. Wait at least 30 seconds Move shunt jumper S1 from the NO to the NC position Re install the Omnia lid using all 30 screws Tighten each screw snugly Failure to affix the lid with all 30 screws may compromise the units susceptibility to RF energy as well as its electromagnetic radiation compliance certification 8 Return the Omnia 6 to service a ee T Location al of Shunt S1 Photo of motherboard showing location of shunt S1 In order to clear the non volatile RAM it is necessary to move the shunt jumper from the normal operating position labeled NC to the position labeled NO You must then leave the shunt jumper in the NO position for at least 30 seconds in order for the contents of the non volatile to be fully cleared Failure to follow this advice and wait long enough may result in partial erasure of the non volatile contents and invalid entries in the parameter lookup tables 104 Omnia 6 Use and Installation Guide Version 1 00a 105 Close up of Shunt Si eeeee anaes Close up photo of shunt jumper S1 shown in the normal NC position Once the contents of the non volatile RAM have been cleared remove the jumper from the NO terminals and re install it on the terminals marked NC Note Failure to re install the jumper on the NC terminals will prevent operating power from being applied to the non volatile RAM at boot up and the motherboard will be unable to initialize The only
53. a 6 Use and Installation Guide Version 1 00a 15 User Interface Tutorial Input Source Selection and Peak Level Setting The following two exercises are a useful introduction to the user interface Start from the Main Menu as displayed when the unit is first turned on The first exercise changes a parameter selection the Input Source selection 1 Rotate the jog wheel to highlight Input 2 Click the jog wheel push on the wheel once to bring up the Jnput window shown below Pre emphasis Input Gain Right Master Drive e Q Phase Rot HP Filter E off O1 mp O3 Gain adjustable over a 30dB range from 18 to 12dB Home Icon H Input Menu f Input Source Select Input Source E Analog C AES EBU Input Mode CO Stereo C Mono L C Mono R C Mono L R E Swap LR E Invert Both p HEADPHONES Headphone Level Control 3 Rotate the jog wheel until one of the Input Source choices Analog or AES EBU is highlighted The filled box next to the selection name identifies the current selection The factory default selection for Input Source is Analog To change the selection to AES EBU highlight AES EBU and click The AES EBU box will now be filled and the digital input is now active If you are using the analog inputs highlight Analog and click to reselect the Analog inputs 4 Rotate the jog wheel until the Home icon H is highlighted in the lower left corner of the window Clic
54. able to get a feel for Every now and then you will see the limiter react quickly and show a larger amount of gain reduction Notice that the response is very fast This action will recover very slowly and return to rest with the main bargraph This action will be easily noticed on material that is very dynamic in texture It is partly due to this very special behavior that the Omnia6 fm has the musicality and clarity that other processors lack Another feature unique to Omnia6 fm is limiter Hold During brief pauses in audio the limiter bargraphs will freeze and the bouncing ball changes from blue to red to show the limiter has entered the Hold mode of the algorithm akin to the Gate function in the AGCs This is most easily noticed when there is a dry voice being processed The Limiter bargraphs like the AGC section can indicate up to 25 dB of gain reduction Omnia 6 Use and Installation Guide Version 1 00a 51 52 Interpreting the Gain Reduction Meter Displays Through careful observation of the processing bargraphs significant information can be acquired and analyzed about the audio signal on a moment by moment basis The yellow bar shows the average value of the gain reduction while the floating ball indicates the peak value of gain reduction Gain Reduction scale __ Gain reduction meter typical Since the processing algorithms in Omnia 6fm adapt to the audio it is capable of performing
55. adjustable over a 30dB range from 18 to 12dB HEADPHONES Input Submenu e Pre Emphasis Selection Input Gain Left Right These controls set both the analog and digital input peak levels For an analog signal the control range is from 18 to 12 For digital signals the range is from 30 dBFS deciBels below digital Full Scale to 0 dBFS The factory default control setting of 0 0dB corresponds to a nominal input level of 4 dBu 12 dBFS To change the input sensitivity highlight the control and click then use the jog wheel to adjust the level in 0 2 dB steps 18 0 dB has the least amount of gain 12 0 dB is the maximum gain Compare the setting of this control with the input bargraph meters so that signal peaks the bouncing balls read at 12 dBFS but no higher Master Drive This control located after the input bargraph meters calibrates the nominal internal level of the Omnia 6fm to match the reference level of your air chain This control may need to be adjusted if your station s audio reference level is something other than 4dBu It also may need adjusting if the input audio feeding the Omnia6 fm is pre processed to reduce the peak to average ratio or if you wish to bypass the WB AGC and have too little gain The range of this control is 9dB to 6dB Note Normally there should be 10 12 dB of nominal gain reduction in the WB AGC section This will occur when a 4dBu average input level is present the Left Rig
56. ally need to be done either by manual intervention at the front panel or via Omnia 6 remote control There are EIGHT Trigger Inputs available and they respond to voltage levels on the rear panel Interface connector Trigger Control by Dry Contact Closures The simplest way to manipulate a Trigger Input is through simple contact closures to ground Connecting a Trigger Input to ground initiates the programmed function associated with the Trigger LOW command and moving the connector pin from a grounded to a floating condition issues the Trigger HIGH command Trigger Control by Applied Voltages The Trigger Inputs are also capable of operating with a DC voltage applied as long as such voltage does not exceed 25 volts DC Applied voltages that are more than 1 25 volts DC on the trigger input result in a Trigger HIGH state while voltages less than 1 25 volts result in a Trigger LOW state Therefore if 12 volts DC is applied a logic 1 or Trigger HIGH is sensed If 12 volts DC is applied a logic 0 or 86 Omnia 6 Use and Installation Guide Version 1 00a 87 Trigger LOW is sensed When nothing is connected to the Trigger Inputs the inputs normally sit at approximately 3 5 volts which is a logic HIGH What Can Trigger Scripts Control Virtually any aspect of the Omnia 6 operation can be controlled using the Trigger Script function Therefore we ll explain some of the different types of operations that can be perfor
57. ary information first before embarking on an in depth problem solving mission Take time to carefully consider whether your unit falls into any of the following states 1 The unit totally dead Is the power on Is the line cord plugged into an outlet that has AC power Is there an audio input level Is there an audio output level Is there a power indication Are the LCD screens blank scrambled or not illuminated Symptoms like these might indicate a power supply problem If you wish to examine the power supply be aware that it is switching type and therefore requires a load in order to start up and operate properly Voltages measured when the power supply is not connected to the Omnia motherboard may not be correct 2 The unit has power but there is no audio output although the processing bargraphs are working The first thing to verify is whether the front panel jog wheel is operational Verification of front panel operation helps narrow down where the problem is Look at the levels display If there is input audio but no output audio indications try cycling the unit s power If that doesn t bring the operation back to normal then a hardware failure of some sort has occurred If you get output levels but have no output audio verify that the outputs are connected correctly An analog output connected to a digital device or a digital output connected to an analog device won t pass audio Connect the appropriate test generator to the output
58. ated then return power to cure this message Card does not have valid OS a fatal error The contents of the rear panel memory card do not match what the operating system expects There is no bootable image on the card No previous system found in memory a non fatal and self correcting error The contents of the non volatile RAM on the motherboard do not match what is on the rear panel memory card This can be caused by a new memory card being inserted or by the Omnia being booted up for the first time after the non volatile memory has been cleared NVRAM failure a fatal error The operating system was unable to write to the non volatile RAM on the motherboard Failed to initialize RTC a fatal error The operating system could not initialize the Real Time Clock IC on the motherboard Dead battery data lost a fatal error The Lithium battery used for system configuration backup is being reported as dead or battery voltage is too low for reliable operation Timed out loading DSP len 8658 Exact len may vary Failed DSP 7 bootstrap contact CE Coo DSP Card number may vary a fatal error The operating system was not able to initialize a DSP card or one of the two IC s on the card Note that the DSP can vary depending on which card is involved Host command bit not clear ERROR read failed write address DSP 8 0100e3 write address may vary a fatal error The operating system was unable to com
59. barcode sticker starting with 0050C and the currently displayed Date visible just below the Login Password dialog box Once presented with this information Omnia Customer Support will give you a special code to type into the password dialog box which will unlock your unit and restore all of the factory default passwords Note that this special password is unique to your unit and is effective for the day on which you call Omnia Customer Support to obtain it Load Defaults Reloads all of the factory default parameters into the system This is the same as a warm boot command on a computer All Input amp Output levels and other System parameters are reset back to their factory default settings Load From Card Allows the system settings essentially all of the internal parameters except those in the Process Menu to be loaded into the system from the PC Card When this option has been selected carefully follow the instructions presented on the LCD screen to perform this function Save To Card This option creates an external file based backup of your system settings All parameters except those in the Process Menu are included in the System settings Occasionally doing this is a good safety practice that creates a backup of your data data that is also stored in the nonvolatile RAM within the Omnia 6fm When selected a naming dialog box appears allowing you to name files according to the Omnia6 fm from which they originated Omnia 6 Use and
60. cables to verify analog digital audio is making it to the next device Omnia 6 Use and Installation Guide Version 1 00a 107 108 The next condition to check is to see if the failure has caused the processing to cease Using program material check to see if the processing bargraphs are operating If they are then it s a good indication that the basic DSP structure is sound and the system s host processor is working At this point it would be a good idea to see if the loss of audio is confined to only one output port e g a composite output the discrete left right outputs or the AES EBU output Check the signal at each of these locations If the signal is dead at all three then this points to a digital audio problem after the dynamic processing DSP chips If one of the output sections is not operating then it can be localized to that specific section Note The composite outputs and the discrete left right outputs are operated from their own specialized Digital to Analog converters Therefore it s possible for one type of output to fail without affecting the other Likewise a failure in the AES EBU driver section could result in the digital output being dead while the rest of the system is operational 3 Unit has power but no audio and no processing indications Check to make certain that the Input Source selected in the INPUT menu is correct for the input type being used If so then there may be some form of problem within the DSP e
61. can radiate radio frequency energy If not installed and used in accordance with the instructions in this manual it may cause interference to radio communications It has been tested and found to comply with the limits for a Class A computing device pursuant to subpart J of Part 15 FCC Rules designed to provide reasonable protection against such interference when operated in a commercial environment Operation of this equipment in a residential area is likely to cause interference at which case the user at his own expense will be required to take whatever measures may be required to correct the interference See the following page for additional information Omnia 6 Users Guide Ver 1 00a CANADA WARNING This digital apparatus does not exceed the Class A limits for radio noise emissions set out in the Radio Interference Regulations of the Canadian Department of Communications Le present appareil numerique n emet pas de bruits radioelectriques depassant les limits applicables aux brouillage radioelectrique edicte par le ministere des Communications de Canada CE CONFORMANCE This device complies with the requirements of the EEC Council Directives 93 68 EEC CE Marking 73 23 EEC Safety low voltage directive 89 336 EEC electromagnetic compatibility Conformity is declared to those standards EN50081 1 EN50082 1 LITHIUM BATTERY CAUTION Danger of explosion if the internal battery is replaced incorrectly Replace only with
62. cies Five Band AGC Similar in character to the wideband AGC described above but expanded to five bands this section has the ability to significantly add power and loudness to the audio while tailoring and pre processing it for delivery to the enhancement and multiband limiter sections Each of the four crossover frequencies has five user adjustable settings Enhance This section contains the Bass EQ and Stereo Enhancement controls In the Omnia 6fm s unique signal processing architecture these controls are placed in their optimal position between the multi band Omnia 6 Use and Installation Guide Version 1 00a 40 41 AGC and Limiter sections Deep Bass EQ For those who demand thunderous bass Up to 12 dB of thunder can be added to shake your listeners walls This is not merely a simple bass EQ but a sophisticated concept which considers the time alignment of low frequencies as they pass through the entire system This allows loud clean thunderous low end with no sacrifice to the overall loudness of your signal Deep Bass is a shelf boost at 85 Hz that utilizes a phase linear 12 dB per octave slope to produce the shelving EQ function Phat Bass EQ Phat Bass is a unique enhancement that adds filtered harmonics to the bass frequencies carefully weighted to deliver its effect during the initial rise time of the low frequencies Low frequency texture is emphasized with this control the resulting effect is that older reco
63. creen is the world renowned Dorrough Loudness Meter as implemented in Omnia DSP code The left hand screen serves as the Meter Display It shows bargraph indications for the AGC and Limiter stages as well as VU and digital sample accurate peak indications of the Input and Output Levels DIGITAL L i LOUDNESS MONITOR INPUT R non 16 20 32 40 dBFS 36 12 OUTPUT R AGC Preset CLASSICAL ji Current Preset Time of Day Home Icon Help Text Box The functions of the Menu Display can be selectively password protected from unauthorized processing or preset changes The Meter Display dynamically indicates real time signal processing activity as well as the Input Output levels The back lights for the two displays are automatically turned off after a user set period of jog wheel inactivity and the factory default timeout is 15 minutes User options of 1 5 15 and 60 minutes turn off times can be customized under the System submenu Omnia 6 Use and Installation Guide Version 1 00a 9 Using the Jog Wheel The main user control for the Omnia 6 is the large easy to use jog wheel with its integral push switch Using the control is both intuitive and efficient making it easy to navigate the menu structure of the Omnia 6 Processing changes and system adjustments can be quickly made with ease without having to remember multiple controls their positions and what they do in each menu The behavior of the Omnia 6 s menu system i
64. cted less Start with reducing the Clipper amount in 0 5 dB steps It s surprising how much detail can be restored from just a small change of 0 5 dB Generally changes in the Clipper drives will have the most noticeable effect on quality but it will also affect the relative loudness level too You lI need to find a happy medium that s right for you Making Air Sound Equalization Changes Tailoring the shape of the overall audio spectrum can be done in three different sections 1 The relative drive settings in the multiband AGC XO menu These controls set the drive levels of the multiband AGC sections 2 The relative drive settings in the multiband Limiter XO menu These controls set the drive levels of the multiband limiters 3 The settings of the multiband limiter Mixer controls All three options will provide noticeable change in EQ We suggest you use the first two listed options In either case an EQ change is still followed by a dynamically controlled stage Therefore any excessive EQ change can be undone by the subsequent AGC or Limiter The last option adjusting the Limiter Mixer is designed to provide a final minor trim to the spectrum If you ve noticed that we calibrated these controls in 0 10 dB steps then you know what we mean when we say these controls are for fine trim Since this stage is after all of the dynamic AGC and Limiting a radical change in level in the Mixer will result in additional and possibl
65. ctl keys act as i Windows keys Bits per second JENN Data bits 8 bd Emulation Parity None 7 fansi 7 Terminal Setup Colors Telnet terminal ID fansi Stop bits fi gt Backscroll buffer lines 50 Flow control None 7 Play sound when connecting or disconnecting Tl Exit program upon disconnecting Restore Defaults ASCII Setup Cancel m Backspace key sends CtihH C Del Cti H Space Ctrl H Enpi Once these parameters have been entered and saved as a connection profile they can be used to capture and display and or print the output of the Omnia 6 s RS 232 serial port during boot up Note that the Omnia s serial port is designed to operate without handshaking This makes it compatible with a variety of external devices It also makes it stupid meaning that you don t need fancy interface equipment or strange combinations of jumpers on the RS 232 connector in order to make it talk At Omnia we commonly use Hyperterminal with only the serial port s receive data line and ground connected This creates a simple two wire interface listen mode that we can use for troubleshooting See the next page for an example of a normal Omnia 6 boot up message that can be obtained from the rear panel s RS 232 serial port 100 Omnia 6 Use and Installation Guide Version 1 00a 101 Normal Boot up Message A healthy Omnia 6 will transmit th
66. d RTP Level function like those in the Wideband AGC window Adjustment strategies are similar however in the mutiband AGC sections adjustments are on a per frequency band basis Omnia controls Low Band AGC Attack Release RTP Speed O FREEZE O stow O MED FAST Make Up Gain GATE THRESH O 5 04B O 10 04B 15 0dB HEADPHONES RTP Level Low Band AGC shown as example other bands are identical As with any multiband processor improper adjustment can exaggerate noise at high frequencies particularly with older recordings that possess a good deal of tape hiss This can especially occur if the higher AGC bands are driven so that significant gain reduction occurs and the band s gating control is set to the lower end of the scale During audio segments that have little or no HF content the AGC will try to increase its gain in an effort to restore treble balance Even during periods when the gate function is in the default Freeze mode the problem might still exist with some programming In those situations even an increase of the gate threshold control to higher numbers may not help the situation Therefore each band of the multiband AGC incorporates a Return To Platform RTP feature similar to that available within the Wideband AGC process block When the RTP function is set to a value other than Freeze the band gain will be forced to recover its gain to a static value higher than might be achieved if the contr
67. de Version 1 00a 21 22 System System Port Baud Security Lev Backlight Numerous maintenance and utility 9600 Level 1 C 1min functions are found in this submenu C 19200 0 Level 2 O 5min System data is saved here and various C 57600 Level3 15min Security options are available to O 1 hour prevent tampering by unauthorized Current Time personnel There are also controls for setting the serial RS 232 communications baud rate TCP IP 5 29 pm Current Date networking parameters the date time Oct 17 2014 and the Screen Saver backlight off timeout interval Fi Sets rear panel serial port to 9600 N81 HEADPHONES System Submenu An important selection under this submenu Save to Card makes a copy of the Omnia 6fm system configuration and stores it on the rear panel PC Card If a power failure should occur the unit restarts using the last saved operational settings This means all Input Output Encode and System Menu settings are restored as well as the previously running processing settings If the system is not backed up and saved to the PC Card then the system restores itself to the last known saved set of parameters which will be the factory defaults if you don t use Save to Card For this reason Omnia suggests that you backup the system using the System Save to Card function after any custom parameter editing has been completed Menu Selections This section presents more informat
68. ded by general functions Dayparts Presets System parameters etc In use a command is typed in and then the enter or return key is pressed If the command is executable e g parts then the command is run e g a table of the dayparts is displayed otherwise the cursor simply moves to the next entry line Dayparts parts Displays the current daypart table partadd lt day gt lt time gt Adds a daypart to the daypart table The day parameter can be assigned the following days Sun Mon Tue Wed Thu Fri Sat M F S S All The time parameter must be defined using the following format lt hour gt lt min gt lt sec gt lt am pm gt As an example typing Partadd Mon 5 00 00am lt enter gt commands the Omnia 6 to add a daypart on Monday at 5 00 00am partremove Removes a daypart from the current daypart list Example partremove Mon 5 00 00am lt enter gt partload Loads a daypart from the PC Card partsave Saves the current daypart to the PC Card Presets Note After a preset is saved to the system the Omnia knows them by their Index Number not by their Preset Name Therefore when selecting a preset you use its index number When saving presets you use its name presets Lists all the currently available factory and user presets by index preset lt preset index gt Selects the preset by index from the list of available presets Example preset 21 lt enter gt commands the Omnia 6 to load preset numb
69. dial 9 to get an outside line as well as a 1 because it is a long distance call In this situation the correct entry for the Phone box would be 9 17175551234 To enhance human readability you could parse the telephone number entry with hyphens Doing this has no effect on the ability of the program to dial out The entry in the Phone box entry would then be 9 1 717 555 1234 80 Omnia 6 Use and Installation Guide Version 1 00a 81 Using a Custom Modem Initialization String A custom Modem Initialization String is sometimes required in order to control the behavior of the modem in special circumstances While there are many different initialization string possibilities the most common one modifies how the modem handles dial tone Sometimes the modem may be connected to a circuit that does not provide the US standard 350 440 Hz dial tone and in this case you need to tell the modem to ignore it Edit Connection x m Properties Name wz Omnia 6 Password Patt com 1 x Phone Modem Init I Connect over Ethernet IP e E OK New Delete Cancel Edit Connection dialog box with Modem Initialization String edit box The extra dialing commands that modify modem behavior should be entered into the Modem Init box in the Edit Connections menu If you are modem init string savvy you could ignore the Modem Init box altogether and place the complete dialing command string i
70. dited to the PC Card Click Save to Card to permanently store the current scripts on the PC Card in one file Click Load from Card to retrieve previously saved scripts To download the scripts for use in the processor without saving to the PC Card click Apply if further script editing will be done Click OK to download 88 Omnia 6 Use and Installation Guide Version 1 00a 89 the current scripts and close the Script Editor window Click Cancel to close the window discarding any changes made since the last Apply or Save to Card Note If you have created Trigger Scripts and clicked Apply but not Save to Card the Omnia will only remember your scripts until you power it off Once the scripts are downloaded into the processor they are executed when the appropriate logic transition occurs on their assigned trigger input Neither the Remote Control application nor the Script Editor need to be connected for the trigger scripts to execute Note When a trigger script is actually executed any problems that may be encountered in the execution of it will not be noted to the user Omnia 6 Use and Installation Guide Version 1 00a 89 90 Script Command Definitions The scripting commands available for use with the Daypart Scheduler are listed in bold lettering e g parts Their definitions e g Displays the current daypart table and usage examples are also listed The commands have been divi
71. ds for the format names that we used when we designed them The factory presets were created as starting points typical of the on air sound that might be typical with such format names but they are not engraved in stone For instance the technical sound of CHR stations usually varies from market to market even though the overall playlist doesn t Therefore you should never assume that because we have a preset name that matches your format that it is the best preset for your format in your market For example if your station is running an Oldies format you may want to start with the ROCKnROLL preset instead of the SOLIDGOLD preset That s OK Start with the preset that sounds the closest to the sound you are looking for In some markets our factory presets may sound too strong or aggressive In other markets they might not be aggressive enough The factory presets in our previous Omnia product were judged by our customers to be about in the middle of the playing field with respect to where they needed to be to be good starting points Always rely on our factory presets to get you started Then once you find the preset that most closely matches the sound you re after you can customize more to your liking All Omnia6 fm s leave the factory with the same presets They can be used as is or be excellent starting points for tailoring the sound of your Omnia for a specific requirement All of the parameters belonging to a preset can be edited usi
72. e This parameter sets the phase relationship between the 19 kHz pilot and the 38 kHz suppressed carrier The system default is 0 0 The performance of the DSP based digital stereo generator is theoretically perfect however should the phase need adjustment in order to offset time domain errors in the overall transmission system the pilot phase can be adjusted 32 in 2 increments We recommend that a calibrated modulation monitor be used for this adjustment If one is not available the tried and true bow tie method using an out of phase 100 Hz tone will suffice If you are not familiar with this method contact Omnia tech support for details Separation The stereo soundfield can be reduced by 3 dB or 6 dB to suppress processing induced multipath that can occur in certain terrain and within certain transmission systems when heavy processing is used When a setting of 3 dB or 6 dB is used the amount of L R perceived stereo effect is also reduced However in difficult RF signal coverage areas the amount of perceived multipath is reduced as well resulting in the perception of a much cleaner overall signal with better penetration and coverage The Omnia 6 defaults to a setting of Stereo using the full L R signal We suggest that you leave it in that mode but the other settings are available for those who wish to experiment including a setting of Mono Schedule Omnia controls E This submenu allows you to create and gt
73. e including without limitation the failure to use telephone and power line surge protection devices accident neglect or damage EXCEPT FOR THE ABOVE STATED WARRANTY OMNIA MAKES NO WARRANTIES EXPRESS OR IMPLIED INCLUDING IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE In no event will Omnia its employees agents or authorized dealers be liable for incidental or consequential damages or for loss damage or expense directly or indirectly arising from the use of any of the Products or the inability to use any of the Products either separately or in combination with other equipment or materials or from any other cause In order to invoke this Warranty notice of a warranty claim must be received by Omnia within the above stated warranty period and warranty coverage must be authorized by Omnia If Omnia authorizes the performance of warranty service the defective Product must be delivered shipping prepaid to Omnia 2101 Superior Avenue Cleveland Ohio 44114 Omnia at its option will either repair or replace the Products and such action shall be the full extent of Omnia s obligation under this Warranty After the Products are repaired or replaced Omnia will return them to the party that sent the Products and Omnia will pay for the cost of shipping Omnia s authorized dealers are not authorized to assume for Omnia any additional obligations or liabilities in connection with the dealers sale of the
74. e or to preserve the phase integrity of the original program as described above 26 Omnia 6 Use and Installation Guide Version 1 00a 27 Pre Emphasis For the transmission side of FM broadcasting some form of high frequency boost or pre emphasis is used The most commonly used values of pre emphasis are 50 and 75 us microseconds For North and South America 75 us is used In Europe Australia and New Zealand 50 us is employed The factory default pre emphasis setting is 75 us The pre emphasis selection affects the operation of the audio processing and is applied to the composite discrete and digital outputs The pre emphasized signal at the Left Right and digital outputs can be restored to flat if needed by the De Emphasis parameter selection To set the Pre Emphasis rotate the jog wheel to highlight one of the three choices Off 50 us or 75 us Click the jog wheel to set the pre emphasis selection Note Normally the Off selection under the Pre emphasis options would not be used in FM transmission applications but is provided in instances where processing of a flat signal is desired One example would be when preprocessing prior to a satellite uplink in distributed radio networks Output There are four settings under this menu Peak Output Level De emphasis item CO Off E 50us e Peak Output Level O 75us Output Sample Rate e De Emphasis O 32KHz e Output Sample Rate ITU BS 412 Multiplex C 44 1 KHz Power
75. e chance of overshoots being generated The Omnia6 fm should always be the standard e We understand why the exciter manufacturers provide these pre emphasis options it has to do with digital codec STLs Research has shown that pre emphasized audio routed through a codec is not very friendly sounding Hence the de emphasis in the processor and second pre emphasis in the exciter This is in our opinion a poor solution to the problem If you must use a codec STL locate the processor at the transmitter Doing so completely eliminates any pre emphasis codec abnormalities in the processed audio and also allows the processor to have the best possible electrical coupling to the exciter be it analog or digital Hopefully this discussion has served to illuminate some of the issues involved in creating an all digital transmission path Should you experience any problems with overshoot or added distortion after this system is in place you should look to the function of the digital exciter and its stereo encoder As a reference you can easily make signal comparisons with the analog outputs from the Omnia 6fm system especially the composite output Viewing the signal on an oscilloscope should reveal that the output is well controlled with no overshoots providing a clean baseband spectrum Omnia 6 Use and Installation Guide Version 1 00a 47 48 This page intentionally left blank to maintain pagination 48 Omnia 6 Use and Installation Guide V
76. e clipper is handling significant mid and upper midrange program material such as solo electric guitar etc We ve brought out a hidden control from the distortion canceling algorithm to allow you to make subtle tradeoffs in how the final clipper texture sounds Higher numbered settings clockwise soften or silken the sound of the clipping at higher frequencies with only a slight reduction in brightness on some material The sound of clipping low frequency material lt 2Khz is largely unaffected Composite Drive This controls the drive to the DSP based composite clipper A setting of 0 0 is the same as the clipper being off This clipper operates on the entire baseband signal up to 53kHz except for the 19kHz pilot No matter how hard you drive the compostie clipper you cannot clip the stereo pilot Embedded within the composite clipper is a 53Khz phase linear low pass filter for SCA protection as well as a wide and deep pilot notch filter These filters combine to remove clipping harmonics and prevent them Omnia 6 Use and Installation Guide Version 1 00a 65 66 from affecting the stereo pilot and SCA regions Adjusting and Using the BS 412 Multiplex Power Limiter The Output Menu contains controls for the Omnia 6 s proprietary ITU BS 412 Multiplex Power Limiter algorithm This algorithm is an enhancement of a DSP based design first pioneered by Frank Foti as an enhancement for the original Omnia FM product Peak Output Level
77. e following message on the rear panel serial port during boot up Omnia BIOS Software 1 13 Work BIOS v1 13 Work Downloading OS Work Downloading OS Work Downloading OS Work Downloading OS Work Downloading OS Work Downloading OS Work Downloading OS Work Downloading OS Work Omnia 6 01 00 Work Omnia 6 01 00 _________ May vary as a function of installed software version Work System Storage Work Omnia Card Work Preset Table Msg set preset RocknRoll alg old null alg new fm_6band Work Load Algorithm Work Load Algorithm Work Load Algorithm Work Load Algorithm Work Load DSPs Work Load DSPs Work Load DSPs Work Load DSPs Work Load DSPs Work Load DSPs Work Load DSPs Work Load DSPs Work Load DSPs Work Load DSPs Work Load DSPs 10 Work Load DSPs 11 Work Load DSPs 11 Work Load DSPs 11 Work AES EBU ERROR Error initializing AES EBU Ignore this message on O6 Work IO Card Work Command System Work Graphics Work Graphics Varies according to preset selected CoUAWNWRWHHO Omnia 6 Use and Installation Guide Version 1 00a 101 102 Audio Failure Alarm If no audio is applied to the Omnia the following messages will be transmitted on the RS 232 port approximately twenty seconds after a successful boot up Flr Audio failure left input Flr Audio failure
78. e one provided in the exciter Analog Composite If you don t object to your airchain being partially analog this option will provide excellent peak control and sound quality Be sure to use good quality low capacitance coaxial cables for best performance Typical cables may be RG 58 or RG 62 type AES EBU The selectable sampling rates in the Output Menu are provided to minimize overshoots caused by downsampling in external equipment This option however cannot make up for potential sonic degradations see Interfacing with a Digital STL and or Exciter below The typical connection to a digital STL or exciter is through the standard balanced AES EBU connection Using a shielded 110 ohm digital audio cable with appropriate XLR connectors on each end connect the processor to the exciter Cable length should be as short as possible and may not exceed 100 meters 328 feet The exciter input should be set for flat input which means that the exciter is not adding any pre emphasis to the input signal In the Omnia 6fm Input menu set the Pre emphasis ON at the correct value for your country In the Output Menu set the De emphasis option to Off This ensures that output from the processor is now pre emphasized according to the standard in use in your country You will also need to adjust the output levels and Output Sampling Rate in the Output Menu Since the digital exciter will be providing the stereo generator function you must set the Pea
79. e with Omnia6 fm The limiters are true limiters and therefore don t need to do much work after the multiband AGC section to create a huge signal on the dial In fact the most common mistake that our first customers made when adjusting the Omnia6 fm was overdriving the limiters A little goes a long way In fact it may help to think of them not as limiters but as Clipper Resource Allocators They should only do just enough work to keep the audio in each frequency band from driving the final clippers too hard and no more 62 Omnia 6 Use and Installation Guide Version 1 00a 63 Multiband Limiter Windows Omnia controls Super Low Band Limiter Release Hold Thresh Limit Thresh A Limiter Submenu SL Limiter shown as example HEADPHONES The controls in these adjustment windows are similar in function to the previously described AGC stages However there are only four controls for the limiters The Attack and Release controls work similarly to the AGC sections but are of course much faster on overall action There are also two new parameters as well The first is the Hold Threshold This control sets the threshold where the limiter s Hold algorithm begins when it detects pauses in the audio When it s in the OFF position the limiters will attack and then release completely just as you would expect them to With Hold Threshold enabled the limiters will momentarily stop and rest during very short pauses especiall
80. ect serial connection at the time it will be disconnected Manual intervention will be required to reconnect e If Omnia Remote Control is connected by Ethernet at the time the meters on Omnia Remote and Omnia front panel will freeze However when the Omnia Remote control session is disconnected normal Omnia front panel operation will be restored Manual intervention will be required to restart Omnia Remote Control e Ifyou have not saved the System or Trigger Script settings they may be permanently lost Omnia 6 Use and Installation Guide Version 1 00a 97 98 Initiating Trigger Scripts via the Daypart Scheduler The Daypart Scheduler is typically used to change a Preset at a set day and time But when a trigger script is added to the Daypart table the script can dynamically change one or multiple attributes when the Daypart is executed A trigger script for use by the Daypart functions is written using the script editor built into the Modify Schedule Window in the Remote Software Only These commands can be executed using the normal daypart features The Scripts editor is accessed from the Modify Schedule Window by highlighting and clicking on the Scripts button There are also test buttons on the page to force the Omnia 6fm to immediately run the current Start Script or End Script At the bottom of the editor window is a check box to enable or disable the use of the script A script may be entered and saved but will not be exec
81. ection and change the jog wheel back to Highlight Mode The following sections provide insight into each of the processing blocks and their associated adjustments Wideband AGC WB This is the first processing section within the Omnia so the controls in this section affect the overall signal its density and hence affect every other processing section following it The job of the Wideband AGC is to erase long term audio level fluctuations while doing so in a very unobtrusive manner Wideband AGC AGC Drive Attack Release RTP Speed EESE2 ELS KCE Ii Gate Thresh RTP Level eie Return to prior screen Kaia HEADPHONES Wideband AGC Submenu The AGC Drive control is calibrated between 12dB and 6dB and adjusts the signal level into the Wideband AGC This control should be adjusted to net approximately 12dB of gain reduction with typical programming Too little gain reduction can defeat the leveling function of the Wideband AGC Too much gain reduction has little additional benefit Nominal gain reduction values for the Wideband AGC are between 10 and 15dB The Attack and Release controls set the Wideband AGC time constants in relative terms using the numbers 0 7 Lower numbers are slower time constants while higher numbers are faster time constants Because the time constants are program dependent calibrating these controls in absolute time values ms dB would be useless therefore we use relative numbers Use a higher n
82. ens to turn off after the last time the jog wheel has been used The selections are 1 min 5 min 15 min or 1 hour To preserve the life of the LCD backlight there is no option available for continuous operation Set Time Sets the current time for the unit which must be set before dayparts can be used The time is set using the familiar turn and push action of the jog wheel Note The time can be synchronized to 00 seconds by pressing the jog wheel in synchronization with the seconds indicator of an external clock To maintain accurate dayparting you should periodically reset the internal clock to your external reference The Real Time Clock IC used in the Omnia6 fm typically has an accuracy of better than 0 5 minutes per month Note An additional menu will prompt you to set the unit to Daylight Saving or Standard time Set Date Sets the current date which needs to be done before daypart scheduling can be used The date is set using the familiar turn and push action of the jog wheel About Displays a window listing the system software versions that are currently loaded and running Change Password Opens up a window so that the selected Security Level password can be changed The factory default passwords are Level 1 user all lower case Level 2 advuser all lower case Level 3 engineer all lower case Level 3 is the MASTER level with unlimited access To change a password use the standard c
83. ent period over a number of days is recommended If what you ve done still sounds good after you have slept on it stop adjusting If you re not quite there yet continue with small iterations until you re satisfied If you are homing in on your goals you ll find that each day the discrepancies become smaller and you re making fewer adjustments When you get it where you like it stop and enjoy Omnia 6 Use and Installation Guide Version 1 00a 51 The Meter Display DIGITAL L INPUT R dBFS 36 30 In addition to the Input and Output Levels display the Meter Display also provides processing OUTPUT R information in the form of vertical bargraphs which indicate both 123 AGC and Limiter Processing 100 activity A AGC LIMIT EFX Preset CLASSICAL 3 50 08 AM AGC Metering Limiter Metering Omnia 6 Main Metering Screen AGC Metering The bargraphs for the AGC sections can indicate up to 25 dB of gain reduction When the bouncing ball indicators on each bargraph change to RED the Gate function is active for that band Limiter Metering The bargraphs for the Limiter section provide a wealth of information about the peak control in Omnia 6fm The limiter algorithms automatically adapt the style of peak control being employed on a moment by moment basis This can be deduced if the metering is studied over time During normal operation the limiter indicators will have a dynamic bounce that you will be
84. ents along with small amounts of limiting Once adjusted the Wideband AGC section will stay deep in gain reduction although with little movement and action within the limiters will be minimal When the programming has wide dynamic range low RMS and high peak levels the opposite will occur The Limiter section becomes active while the AGC section will appear not to respond as much During these events the Limiter sections could be working aggressively while the AGC sections indicate little activity Good examples of programming able to cause this behavior vocal passages live voice classical music and passages with high transient levels Good test examples almost anything classical as well as almost anything by Steely Dan Also keep in mind that the AGC sections are designed to operate much more slowly than the Limiter sections primarily because of the nature of each function Remember that the AGC sections operate on the 52 Omnia 6 Use and Installation Guide Version 1 00a 53 program s RMS energy During gain calculations the incoming program s average level is established and gain adjustments if needed are made based on those calculations This is why the AGC sections will appear to move slower than the limiters they are making changes as needed over relatively long time periods The intent of the Limiter sections is to control the peak levels This is accomplished by finding and controlling the highest peak
85. enu Display The Omnia 6fm Main Menu is displayed on the right hand LCD screen LOUDNESS MONITOR and offers seven menu selections Preset Schedule Process Encode Input Output System Below the Main Menu in the lower left corner of the display is a multipurpose Help Text box The Omnia 6fm menu system has been designed to be intuitive and simple to use with a minimum of layered submenus Most operating parameters are found on one of the seven main menus Select and modify processing presets here E When the Main Menu is displayed as shown above rotating the jog wheel sequentially highlights each This allows multiple processing changes to be made quickly and with ease Home Icon menu item This is called Highlight Mode With a menu item highlighted pressing on the jog wheel called clicking brings up that item s submenu window Similar action results when submenus are selected under these seven main menus Preset Presets The Preset menu item is shown ADULT CONTEMP highlighted in the Main Menu Screen BYPASS CHR CLASSICAL the jog wheel would open the Preset COUNTRY Submenu window shown at left To SOLIDGOLD illustration above In this case clicking exit a submenu and move back to the URBAN main menu highlight the H Home ROCKnROLL icon in the lower left corner and click ene the jog wheel Move to preset screen list so you can choose a new one HEADPHONES
86. eo Separation Return to Main Menu C HEADPHONES Encode Submenu Composite Output 1 amp 2 These controls individually set the level at the two separately buffered rear panel composite outputs The output level adjustment range is between 1 25 and 9 5 volts peak peak Use the jog wheel to select the modulation level for each composite output Once the desired peak modulation level is displayed click the jog wheel to set the level and return to Highlight Mode Always use typical program material and a calibrated modulation monitor to properly set modulation To aid quick adjustment it sometimes helps to advance the Clipping control before adjusting the composite outputs Note that reference line up tones applied at the Omnia6 fm input cannot be used since the RMS level of a steady state tone does not crest at 100 modulation SCA Level Sets the SCA subcarrier deviation level This adjustment should always be done using a calibrated modulation monitor Note Adjusting the Composite Outputs changes the SCA deviation level since the two output controls are effectively in series Always recheck the SCA Level adjustment after making adjustments to the Composite outputs Pilot Injection Sets the pilot level from 6 to 12 in 0 1 steps relative to 100 modulation To defeat the pilot simply adjust the Pilot Injection control below 6 and the control indicates Off 30 Omnia 6 Use and Installation Guide Version 1 00a 31 Pilot Phas
87. er 21 in the index list delete lt preset index gt Deletes a preset from the preset index list by its index number Example delete 21 lt enter gt commands the Omnia 6 to remove preset number 21 from the index list rename lt preset index gt lt name gt Renames the preset by its index number 90 Omnia 6 Use and Installation Guide Version 1 00a Example rename 21 BOOGY lt enter gt save Saveas Example saveas BOOGY lt enter gt 91 commands the Omnia 6 to rename preset number 2 Saves the preset under its current name Note Factory presets are permanent and cannot be written over You must use the saveas command when saving changes made to a factory preset in order to save it as a unique name Saves the preset under a different name Commands the Omnia to save the current settings as preset BOOGY Non System Parameters paras paras Example paras lt enter gt paravalues lt index gt para lt para index gt lt paravalue gt Lists the modifiable parameters available for the current preset in a table format displays the parameters for the current preset Lists all possible values for the parameter at the given index number Sets a new value for the selected parameter Omnia 6 Use and Installation Guide Version 1 00a 91 92 Omnia 6fm System Parameters A syspara is an Omnia 6 System parameter The System Parameters are assigned to controls which givern overall
88. ernative processing possibilities please give the next brief section some thought It may help provide you with some needed direction in your overall processing plan A Word about Loudness Making this confession is a little like telling your parents you dented the car But here it goes It s OK for your station to be loud Very very loud In the past loudness was a problem due to the limitations of the processors of the day In the quest for ultimate loudness you probably either adjusted or modified your old processor well outside of its safe range or used multiple boxes in the signal chain and accepted the byproducts of the interactions and conflicts among them Omnia 6fm has changed all of that It s been designed to look at the incoming audio and know how to make your station consistently loud on the dial and without the artifacts or grunge created by your current Omnia 6 Use and Installation Guide Version 1 00a 69 70 processor Omnia 6 makes loudness an effortless exercise for all formats One more confession It s also OK for your station to not sound loud yet sound incredibly musical and grunge free because the Omnia 6 has given you the choice Omnia6 fm is a system that maximizes the audio quality of your signal yet at the same time satisfies your competitive requirements Quality versus Loudness The trade off between quality and loudness is primarily determined by how you choose to use the limiting and c
89. ersion 1 00a 49 Chapter 5 Fine Tuning Your Sound Many broadcasters will be amazed at the dramatic sonic improvements Omnia 6fm delivers right out of the box and using one of the included factory presets Some will want to tailor one or more of the presets slightly to create a more custom sound for their station Still others will wish to really delve in and significantly modify the parameter settings to create their own unique signature sound About Loudness and Listener Fatigue If you re an audio processing expert you ll find what we ve included within the Omnia6 fm to be the most powerful tools ever If you re new to audio processing we recommend proceeding with caution and with knowledge of your goals Getting the most out of your Omnia 6fm processor or any other processor for that matter starts with knowing your objectives beforehand and knowing where you can make tradeoffs If your goal is to be the loudest station on the dial and obtain extreme amounts of detail and quality keep in mind that there are limits Reaching one goal is usually at the expense of the other Thus far we are not aware of any research or ratings information that proves that being the moment to moment loudest station on the dial is of any benefit to the listener There will always be those individuals who feel that louder at any cost is better The added distortion from the endless and pointless pursuit of raw loudness may generate negative effec
90. ets 69 Warmth EQ 41 Stereo Expander 41 Getting the Sound You Want 69 Multiband Dynamic Peak Limiter 41 A Word About Loudness 69 Distortion Canceled Clipper 41 Quality versus Loudness 70 Stereo Generator Encoder 41 Increasing Loudness 70 Composite Clipper 42 Adding More Detail to the sound 71 Pilot Protection Filter 42 Making Sound Equalization Changes 72 Thunder Bass 72 4 PROCESSOR INTERFACING 6 Remote Control Software Processor Location 43 Analog STL Use 43 f Digital STL Use 44 Software Installation Options 75 Monitoring Location 44 Using the Self Installer 75 Source Material Quality 44 Using the raw executable 76 Studio Microphone Processing 45 Setup and Configuration 76 Processor Latency Time Delay 45 nth Operating Levels 45 Finding the software version number KI Omnia 6fin Connections 46 Edit Connection dialog box 78 Output Connection Options 46 Using the supplied modem 79 Using your own modem 79 Interfacing with a Digital STL Exciter 46 Using a Direct Serial Connection 80 Connecting via Modem 80 Appendix A Custom modem initialization strings 81 Using an Ethernet based connection 83 CE Declaration of Conformity Establishing a Remote Session 84 Terminal Programs Direct Connection 85 Trigger Script Editor 86 Dry Contact Closures 86 Applying Control Voltages 86 Use of Trigger Scripts 87 Paras and Sysparas 88 Using the Editor 88 Script Command Definitions 90 Dayparts 90 Presets 90 Non system Parameter
91. etting the Omnia s system time to an external standard and remote re booting of the Omnia To use the Omnia s command line Time function to reset the Omnia s System Clock to midnight based on an external contact closure such as from an automation system or other time reference the script syntax would be Time 00 00 00 Sets the Omnia time to midnight Note that colons are not used as delimiters in this entry Although time is displayed by the front panel display and its controller it is actually being kept by the Omnia motherboard When resetting the System Time using trigger scripts the change takes effect immediately However because the front panel fetches time synchronization from the motherboard every 96 Omnia 6 Use and Installation Guide Version 1 00a 97 few seconds the front panel s confirmation of the time change may lag by a few seconds Another use of the one way script possibility although not strongly recommended is the remote re booting of the Omnia In that special case there would be no Go High script entry The Go Low script for that function would simply read warmboot Remote re booting of the unit carries with it several caveats e There will be a loss of audio while the system restarts Analog and composite audio will continue to run for approximately nine seconds and then nine seconds of no audio will elapse while the DSP code is reloaded e IfOmnia Remote Control is connected by a modem or dir
92. h contains your connection type information When you first run the Omnia 6 Remote Control program there is no connect dat file yet so you will receive the error message No connection database Creating new database This is normal and is no cause for concern Using the raw Executable Using standard Windows procedures create a new folder by the name you wish to use and place a copy of Omnia6_remotel exe in that folder You can then also create a desktop shortcut to that executable if desired Note When you install Omnia Remote Control software updates you should move the old version and its associated connect dat file to a new folder This way conflicts with different versions of the connect dat database will be avoided If you wish the old version s folder can be safely deleted once the update is complete You will also want to use unique folder names for each copy of other Omnia remote control programs if you have those installed Please note that the remote control programs themselves as well as their associated connect dat files are unique for each version of the Omnia Classic Omnia 3 Omnia4 5 Omnia 6fm and Omnia Toolvox Setting Up and Configuring Omnia Remote Control The Remote Control Program for the Omnia 6fm is specific to the Omnia 6fm As stated earlier Omnia Remote Control programs designed for our other Omnia family of products will not work with Omnia 6 The latest versions of all Omnia remote control programs are
93. hank you for selecting the incredible Omnia 6 Audio Processor Your continued patronage and support are appreciated Sincerely Team Omnia January 2002 Greetings It s with great pleasure to offer you our ultimate audio processor Omnia 6fm But first I must share my gratitude with you as well This second generation FM processor has evolved from the original Omnia digital processors and the worldwide acceptance of those has been quite humbling for me to say the least As I write this Omnia processors are now deployed by so many leading broadcasters throughout the world that when looking at the list I am overwhelmed by the recognition that my originally small project to improve the sound of radio has gathered So it s to you I say Thank You 1986 seems like just a short time ago It was that year in the engineering shop at Z 100 WHTZ FM New York City that our first product was born The Vigilante FM Limiter Now 15 years later along with an incredibly talented team of fellow broadcasters and engineers we offer you the next progression in broadcast processing Omnia 6 This processor is not just Frank anymore It s a complex effort from a tremendous team that has had only one goal in mind to raise the bar yet again and present you with the best product possible I don t have enough space here to thank each and every one of the Telos Omnia worldwide team members who have contributed to this product in so many importa
94. he 19 kHz pilot tone and to switch the input from stereo to mono left But a far easier method is to use the Trigger Script Editor to create two scripts that can be loaded into the processor to run in response to a single relay contact closure or open The following scripts do just that set the Omnia 6fm to automatically switch to mono in response to a sustained contact closure and to then return to stereo operation when that same contact is opened In scripts all lines that begin with syspara must be followed by two numbers that identify the parameter ID number that is being set and that ID number s new value The value numbers and their settings for the Pilot Level were also shown To list the values and parameter settings for any parameter type in 2a 66 sysparavalues followed by a space and then the parameter s syspara number the sysparas table in the Appendix lists all of the available parameter numbers Omnia 6 Use and Installation Guide Version 1 00a 93 94 Trigger Script Example for Switching to Mono Operation In this example we ll configure Trigger Input 1 to switch the Omnia 6fm into mono operation when the contact closes and switch back to stereo when it opens again To create this script open up the Script Editor and click radio button 1 Now click in the lower edit box to begin entering the Trigger 1 Trigger Low script Type syspara 9 1 lt enter gt This command sets the process
95. he temptation to make too many changes at once When that occurs it becomes difficult to determine why the result of an adjustment did or did not make sense Focus on one specific area of your sound at a time Once that area is satisfactory then move the focus to the next area as needed Based upon the above suggestions you can experiment with different styles of processing Some broadcasters prefer to have their processing be perceptibly loud but dynamic This may not result in the loudest station on the dial but it still gives the illusion of loudness retaining detail and clarity and reducing listener fatigue This can be done by centering your efforts in the Limiter sections and avoiding heavy use of the clipper One trick that works well is to use very fast attack and release times in the multiband limiters but do not let them produce more than 5 dB 7 dB of gain reduction This keeps the IM distortion of the limiters to a minimum and doesn t over squash your sound Adjusted in this manner the Limiter sections are relied upon to generate higher long term RMS levels which translates into increases in perceived loudness If the quest is to produce the loud and proud appearance of the big boys in town then the limiters and clippers should both be leaned upon a bit more Loudness at all costs is usually the reason for moving the processing in a direction like this Using larger amounts of drive to the multiband limiters along w
96. ht gain controls are adjusted for peak input levels just reaching 12dBFS and when the Input Gain Master Drive and AGC Drive controls are set at 0 0 If not you may adjust the Master Drive control to achieve the desired WB AGC gain reduction value Omnia 6 Use and Installation Guide Version 1 00a 25 26 Input Source Selects between the discrete Left Right Analog input or the AES EBU Digital input Input Mode Selects how input audio is routed and processed by the Omnia 6fm Highlight and click on the parameter selection to set the mode The selected Mode is shown with a dot in the box next to the name The factory default selection is Stereo The other available modes are Stereo the left and right input channels are processed separately Mono L routes the Left Input only through both channels of the processor Mono R routes the Right Input only through both channels of the processor Mono L R sums the stereo input to mono and processes the summed audio Swap L R swaps the Left and Right Inputs Invert Both if the absolute phase of the Omnia 6fm is different from your existing system it could cause your announcers to think they sound weird when speaking while monitoring through headphones If this happens the absolute phase of the Omnia 6 may be different from what your announcers are used to A quick way to remedy this is to highlight Invert Both and click to select A dot in the box indicates Invert Both is active
97. ing of positive and negative peaks making better use of the symmetrical limitations of the FM medium This feature may be defeated for a more musically transparent sound at the expense of possibly increased distortion on certain voice material Phase Linear Time Aligned Crossovers Most multiband audio processors make a compromise in the crossover area in order to provide a flat dynamic frequency response This is done to avoid audible peaks or dips in the recombined frequency response as the individual band gains change during processing In an effort to minimize this problem most processors use a fixed phase offset in the crossovers While such treatment helps to minimize frequency response peaks and dips it also results in a loss of phase linearity increasing smearing and reducing musical clarity In Omnia 6 s DSP implementation the crossover networks are carefully time aligned so that the recombined spectrum remains flat regardless of the amount of gain control being applied within any band This true phase linear response assures that harmonic overtones are not displaced in time The result the truer more natural and more musical Omnia sound Additionally Omnia 6fm features separate crossovers for the multiband AGC sections The AGC crossover section features user adjustable crossover frequencies exclusive to Omnia while the limiter section contains its own six way crossover with factory optimized non adjustable crossover frequen
98. ing on page 2 6 gives in depth descriptions and usage instructions for each submenu item and parameter selection Preset Omnia 6fm is equipped with numerous factory presets that can be used to instantly configure the processing for common applications Highlighting Preset and clicking the jog wheel will open the Preset submenu Appearing here is a list of all of the presets stored on the Omnia PC Card Highlighting a Preset and clicking Choose allows that preset to be loaded into the Omnia 6fm instantly setting the various processing parameters You may also compare and modify settings between presets save the current processor settings to an existing or new user preset and rename or delete user presets using options found on this submenu Process Highlighting and clicking Process opens up the Process submenu shown below Process ea a AGC p L Wide Band Automatic Gain Control Eai Processor Block HEADPHONES Process Submenu showing Processing Signal Chain This is where the processing power of the Omnia 6fm can be fine tuned and your station s individual sound customized Each processing subsection in the Omnia 6fm shown in block diagram format can be highlighted and clicked to open a parameter window with all of the available controls assigned to that function Omnia 6 Use and Installation Guide Version 1 00a 19 20 Since you cannot build a preset from scratch a factory preset must be used as a starting
99. ion on each submenu window item and the parameter choices or value settings that may be available within them See Chapter 5 Editing Presets for detailed information on editing processing preset parameters to achieve your custom on air sound This procedure is used for all parameter selection and editing 1 Rotate the jog wheel to highlight a menu item or submenu item 2 Click the jog wheel to select that choice or item 3 Ifthe parameter requires a value rotate the jog wheel to adjust the value 5 Click to accept the value and return the jog wheel to Highlight Mode 22 Omnia 6 Use and Installation Guide Version 1 00a 23 Preset This submenu is active under Level 3 password access or at Security Levels 1 or 2 as defined in the Security Config screen In addition to the Preset name list there are five functions available in this submenu Choose Modify Save Preset Save Preset As and Compare Preset Presets ADULT CONTEMP BYPASS CHR CLASSICAL COUNTRY SOLIDGOLD URBAN ROCKnROLL TALK om Move to preset screen list so you can choose a new one HEADPHONES Preset Submenu Preset List Lists all of the presets factory and user that are on the PC Card inserted into the memory card slot on the rear panel of the Omnia 6fm Choose To load a preset highlight the Choose option to move the highlighting to the Preset List then rotate the jog wheel to highlight the desired preset name and click The
100. is artificially brightening some program material too much slower release time settings for the higher bands may be appropriate Users have reported that release time settings of 1 5 for band 4 and 1 0 for band 5 work quite well to keep this issue under control without punching holes in the high end AGC Mixer Mix Omnia controls AGC Mixer Mid Low Mid High Super High HEADPHONES AGC Mixer Submenu This is where all five of the multiband AGC s are mixed together Use care in adjusting this section as too much level from one particular band may cause an excessive amount of emphasis to that range of frequencies Such adjustment may also drive the limiter bands in that range of frequencies too hard causing the sound to become unnatural dense and squashed As explained earlier if your desire is to EQ the sound you should perform that function using the drive levels in the AGC or Limiter XO Parameter Windows The AGC mixer is primarily intended for minor EQ changes to the overall sound or for providing a complementary cut to the AGC Crossover settings to improve consistency see AGC XO above 60 Omnia 6 Use and Installation Guide Version 1 00a 61 Enhance Theanine Each of the Deep Bass Phat Bass and Warmth controls can boost the level up to 12 dB Be careful here not to overdrive the Deas Bees Phat Bass Warmth following limiter sections or over emphasize these lower frequency ranges When used pr
101. ith faster release times will generate a signal of high short term density Also an increase in clipping will further aid this The effect of the processing set in this manner is that the audio is consistently loud at all times a wall of sound The drawback is that the density can cause listener fatigue and have a negative effect on time spent listening While Omnia 6 is designed to minimize listener fatigue it is capable of generating large amounts of density that could eventually lead to fatigue Be careful Adding More Detail When Loudness Isn t the Last Word Now that we ve squashed the grape lets look at what it takes to undo a heavily processed signal Basically just reversing the procedures listed above will do the trick 1 Reduce the drive to the Clipper 2 Back off on the influence of the Limiter stages e Reduce the amount of Drive to each band in the Limiter XO screen e Reduce the Release times to slow down recovery e Raise the threshold of the Hold function 3 Ease up on the Wideband AGC sections e Reduce the Drive to the WB AGC and the Multiband AGC bands in the WB and AGC XO screens Omnia 6 Use and Installation Guide Version 1 00a 71 72 e Reduce the Release time to operate slower e Reduce the amount of Make Up Gain Backing off the clipping sections first will allow the processing to retain a level of competitive loudness while enhancing quality and the overall dynamic texture will be affe
102. k Output Levels in the Output Menu for the proper AES EBU discrete left right channel levels and also set the Output Sample Rate to the actual internal operating sample rate of the exciter Interfacing With A Digital STL and or Exciter At the time of this writing many engineers are proponents of the all digital broadcast transmission path However there are some key issues which must be dealt with when implementing all digital transmission in order to preserve loudness without sacrificing audio quality One issue concerns the sampling rate of the audio processor and that of the exciter In order for two differently sampled systems to be interfaced in the digital domain a neat little device known as the sample rate converter is used For instance a device which outputs digital audio data using a 48 kHz or higher sampling rate can be converted down to a lower rate of say 32 kHz Unfortunately unless spectrum is limited to the Nyquist frequency of the lower rate overshoots can be created which rob loudness Detailed information can be found in the technical papers Critical issues and Considerations for an All Digital Transmission Path Digital Dynamics Processing It s All In The Samples and Digital Broadcast Audio Processing 46 Omnia 6 Use and Installation Guide Version 1 00a 47 Finally The New Frontier on the Omnia Tech Info web page at www omniaaudio com When using the AES EBU outputs to drive
103. k to return to the Main Menu 5 Note that as you adjust the Input Source selection in this menu the wording above the Input level bargraph on the Meter Screen changes to follow the selected source name Omnia 6 Use and Installation Guide Version 1 00a 15 The next exercise adjusts a parameter that uses a value the L R Input Gain setting 1 6 Highlight Input and click to open the Input window Input Gain Input Source Right sey E Analog Cc e e C AES EBU Input Mode Pre emphasis Phase Rot HP Filter C Stereo E Off C Mono L O1 C Mono R O2 C Mono L R E3 E Swap LR E Invert Both Gain adjustable over a 30dB range C from 18 to 12dB HEADPHONES Input Menu Showing Input Gain Controls Rotate the jog wheel to highlight Input Gain Left and then click the jog wheel to select the control Rotate the jog wheel CW to increase the input gain Rotate the jog wheel CCW to decrease the input gain The gain in dB is shown below the control Note that the original setting is always shown in a different color when the control is adjusted To cancel level changes move the control back to the original setting and click Using normal program audio a correct gain setting results in peak indications the bouncing balls hitting 12 dBFS where the level meters turn red or a little higher This corresponds to system headroom of 12 dB You may adjust for more headroom if you wish lower indications
104. kers sound like they have more bass than they actually do Warmth EQ The Warm Bass parameter in the Enhance section of the Process submenu is a shelf boost at 150 Hz Warmth EQ compensates for program material that is naturally lacking in upper bass punch Be judicious about applying too much as the resonant frequency of most automobile interiors lies in this frequency range Space EFX The Omnia6 fm contains an intelligent DSP based stereo enhancement tool that enhances the stereo soundfield without causing unnatural hole in the middle imaging or exaggerated multipath Program audio previously lacking in stereo width will have noticeably increased ambiance and dimension when the Space EFX is active Vocals will stay up front and the sonic details of musical instruments are heard with an apparent slight loudness increase when listening in stereo The Space EFX control has a range of 0 off to 16 and the amount of dynamic width expansion can be observed on the rightmost vertical bargraph on the Meter Display screen The system should be initially auditioned using light amounts of Space EFX with an initial setting of 4 to 6 recommended as a starting Omnia 6 Use and Installation Guide Version 1 00a 61 62 point The overall stereo soundfield will appear wider and be much more consistent sounding between program sources The smart Stereo EXP algorithm turns off when a mono program source is present If you find that your mono programming sou
105. lick and turn of the jog wheel to select the character position you wish to change and to select the new character for that position After entering a new password highlight the checkmark and click the jog wheel to save the password If you wish to cancel the operation highlight the X and click the jog wheel 34 Omnia 6 Use and Installation Guide Version 1 00a 35 Lock Unit Highlight and click to immediately lock the unit A dialog box is presented for password entry to unlock the unit Note You can only unlock the Omnia 6fm at the same or higher access level than it was at when it was locked In other words if the unit was locked while at Level 3 then only the Level 3 password will unlock the unit If the unit was at Level 2 when it was locked then either the Level 2 or the Level 3 passwords will unlock it When the unit is locked at Level 1 then any password will unlock the unit Caution Do not assign the same password to multiple security levels You will lock yourself out of the unit Resetting the Omnia 6 Passwords to their Factory Defaults Note If you do manage to lock yourself out or you have simply forgetten your password Omnia Technical Support can assist you in unlocking your Omnia 6fm You will need to contact the Telos Omnia Customer Focus Team to obtain a special code which will be entered into the Login Password dialog box You will need to have your Omnia6 fm s 12 digit MAC address found on the rear panel
106. ling reference level and from that information makes conditional decisions affecting the character of the release function A user adjustable Make Up Gain feature incorporates a hidden control signal that determines when the amplitude of the input program suddenly falls to a reduced level It then adjusts the side chain gain in order to fill in the softer program passages so that the average level is increased This allows the AGC function to operate with slower time constants while significantly increasing the average audio level These slower overall time constants yield lower intermodulation distortion contributing to Omnia s trademark sound Using Classical music for an example the orchestra often plays forte and then enters abruptly into a quiet passage Conventional AGC algorithms would hold the softer passage down until it was able to slowly recover at the static release time setting making such passages nearly inaudible at normal listening levels Omnia 6 s makeup gain function allows a hidden faster time constant to provide quick recovery but only during the softer passage As soon as the orchestra starts to play louder the makeup time constant yields control back to the primary AGC circuit returning gain to the previous platform level This sophistication preserves the dynamic integrity of the signal while greatly enhancing the listenability of the program A built in multi stage phase rotator ensures symmetrical clipp
107. lipping sections While each function alone will generate dial presence they each have different advantages as well as side effects When excessive limiting is used intermodulation distortion is increased making the audio sound mushy and smeared The added short term density can also cause the audio to be tight squashed or dense The dynamics artifacts caused by excessive limiting might sound like pumping breathing The rule for limiting is a little goes a long way When excessive clipping is used harmonic distortion is increased The audio level is in effect running into 99 66 99 66 the brick wall Too much clipping can cause the audio to sound broken up torn rough or edgy As you might imagine the harder the limiters and clippers are driven the louder the audio perception However you are also much more likely to encounter increased intermodulation and or harmonic distortion The following sections are provided to assist you in designing the personality of your station s sound As we said earlier there is no precise recipe for setting up audio processing While there are some basic fundamentals that you can use to get started toward the sound that you desire it may require a concerted effort with extended listening and subtle processing changes over time to achieve your ultimate goal Just remember to know your competition know your goals take your time
108. llation Omnia 6fm Components By now you ve unpacked the shipping carton to gain access to this manual Now is the time to inspect the Omnia 6fm unit and its shipping carton for any signs of shipping damage which must be reported to your carrier for any claims The Omnia 6fm shipping box includes the following components gt Omnia 6fm processor containing the DSP hardware Omnia 6fm PCMCIA Type Memory card holding the DSP software PCMCIA Type Modem Card for use with Omnia 6 fm Remote Control Omnia 6fm Operating Manual this document Warranty Registration Card Please complete the form and return FAX it to Telos Omnia Yvy yV V Two IEC Power Cords one for use in the US and one for use in Europe PC Card amp Modem Installation Before installing your Omnia 6fm or even plugging in the power cord make sure the Omnia 6fm PC Memory Card and Modem Card are installed into the correct card slots on the back panel and are fully seated Installation or removal must be done with the power off unless directed otherwise The PC Memory Card is inserted into the top card slot with the Omnia label facing up The Modem Card is inserted into the bottom card slot below the Omnia PC Card Both the PC Card and the Modem Card are keyed to prevent improper insertion Gently press the cards into the slots until the black release button to the right of the card pops out about 1 2 12 70 mm This indicates the card is properly seated in the PCMCI
109. location that these boot failure error messages will appear is on the rear panel RS 232 port discussed previously The only symptom visible from the front panel will be the rotating Omnia logos becoming stationary and not being replaced by the menu and meter screens see below Omnia 6 Use and Installation Guide Version 1 00a 105 106 Diagnosing abnormal boot up behavior The rotating Omnia logos are shown below stopped and not replaced by the usual menu and meter screens This means that one or more functions on the Omnia motherboard have not been initialized but the front panel is alive and well In this scenario it is helpful to view the Omnia 6 boot progress using the rear panel RS 232 serial port and the procedure outlined earlier in this chapter Possible causes for this behavior are 1 The rear panel PCMCIA memory card is not properly seated in its socket Power off the unit reseat the card and power on again If the problem does not clear up call the Telos Omnia Customer Focus department for instructions 2 The rear panel PCMCIA memory card has become corrupted 3 There has been a problem loading the DSP code algorithms perhaps because of a faulty DSP card 4 There is a problem on the motherboard that is preventing the main CPU from booting up Call the Telos Omnia Customer Focus department for instructions 106 Omnia 6 Use and Installation Guide Version 1 00a 107 Electrical and mechanical safety note
110. looking waveforms exceeding the peak level of the low frequency signals The top of the low frequency waveforms should look very flat If the top appears to tilt in any manner then there is a low frequency deficiency in the STL system We d offer further information here on the how and why this occurs but that could consume a whole chapter by itself Simply stated the problem Omnia 6 Use and Installation Guide Version 1 00a 43 44 could be due to either AC coupling in the STL system or bounce generated by either the modulator or demodulator of the STL Sometimes it s a little of both If you notice any grass exceeding the peak level of the low frequency waveforms there could be noise getting into the system This can occur if the RF path is noisy due to RF signal loss Such grass can also be added to the signal if the composite path through the STL system is not linear through the 53 kHz bandwidth that a composite signal requires and this results in overshoots to the processed signal A simple fix for either of these two problems is to employ a composite clipper at the transmitter site But beware Clipping these artifacts can lead to significant audible distortion and degradation of the subcarrier region of the signal While the above items must be given some thought there are many advantages to installing the processing at the studio If the STL link is of late design and operates as designed su
111. ls are displayed in real time The bars indicate VU while the bouncing balls indicate sample accurate peak signal levels The horizontal meters show the signal levels below full scale digital 0 dBFS which is the absolute maximum level in the digital domain In normal operation the VU metering should average about 15 dBFS 12 dBFS is approximately equivalent to OVU in the analog domain Processing Display The thirteen vertical bargraphs in the lower half of the Meter Display show the processing activity in real time within the Omnia 6fm The first vertical meter labeled W represents the processing activity in the Wideband AGC section The five vertical AGC meters show the processing activity of each of the AGCs in the multi band AGC section The six vertical Limit meters show the processing activity in each of the limiter sections of the multi band limiter Each of the meters is capable of indicating up to 25 dB of gain reduction The rightmost vertical bar graph labeled EFX indicates the processing level of the built in Stereo Enhancement effect when that function has been activated Note The wideband AGC and Multi band AGCs will recover to a resting gain setting which coincides with the RTP Return To Platform levels set for each band Refer to Chapter 5 Editing Presets for more information on interpreting and using the processing bargraph displays Omnia 6 Use and Installation Guide Version 1 00a l1 Main M
112. med and the different types of commands that are required to perform each one Some Common Usage of Trigger Scripts Switch from Stereo to L R Mono Switch from L R Mono to Stereo Switch the Stereo Pilot off Switch the Stereo Pilot back on and at 9 injection Switch the Omnia s audio input source from Analog to Digital Switch the Omnia s audio input from Digital to Analog Omnia 6 Use and Installation Guide Version 1 00a 87 88 The Para The Syspara and Command Line Entries What Is A Para In general a para is a variable that corresponds to one of the adjustable controls available within a Processing Block For instance the Wide Band AGC Release Time is a para in fact it happens to be para 665 What Is A Syspara In general a syspara is a system parameter assigned to the basic operation of the System Controls such as the one for audio source selection the mono operating mode and the stereo pilot state and its injection level each have a syspara value associated with it A complete list of Omnia 6 syspara values can be found in the Appendix In the above explanation we used the disclaimer in general because there are certain exceptions What About Command Line Entries Just as paras and sysparas can manipulate the processing controls and system adjustments there are higher level commands available which do even more special things Later we ll discuss how the command line can
113. ment Parts When replacement parts are required be sure the service technician has used replacement parts specified by the manufacturer or that have the same characteristics as the original parts Unauthorized substitutions may result in fire electric shock or other hazards Safety Check Upon completion of any repairs to this product ask the service technician to perform safety checks to determine that the product is in safe operating condition Cleaning Do not use liquid cleaners or aerosol cleaners Use only a damp cloth for cleaning Omnia 6 Users Guide Ver 1 00a HAZARD WARNING LABELS WARNING SHOCK HAZARD DO NOT OPEN AVIS RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR CAUTION TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE ANY COVER OR PANEL NO USER SERVICABLE PARTS INSIDE REFER SERVICING TO QUALIFIED PERSONNEL WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THE OMNIA TO RAIN OR MOISTURE The Exclamation The Lightning Flash With Point Arrowhead symbol within an symbol within an equilateral triangle alerts the equilateral triangle user to the presence of alerts the user to the uninsulated dangerous voltage presence of important within the product s enclosure operating and that may be of sufficient maintenance magnitude to constitute a servicing instructions risk of electric shock in product literature and instruction manuals WARNING This equipment generates uses and
114. mer Focus personnel may ask you to capture such data from the rear port if it seems necessary The serial communications parameters of the terminal program should be set to 8 Data Bits No Data Parity None 1 Stop Bit Flow Control None The Baud rate bits per second must be set to match the setting in the Omnia 6fm s System Menu Make sure however that the maximum allowed baud rate set in the Windows Device Manager of the serial port being used is set at least as high as the desired baud rate Setting this to the highest available setting is fine Once these parameters have been set one can now log onto the Omnia 6fm with the password tomtom all lower case Omnia 6 Use and Installation Guide Version 1 00a 85 86 Trigger Interface and Script Editor Overview of the Trigger Script Editor The Omnia 6 Remote Control software contains a special script editor that allows the programming of complicated system parameter changes which can be triggered by logic state changes on the rear panel Trigger Interface Script Editor x Trigger Trigger HIGH Command Script ci C 2 C 3 C ta B CH5 Trigger LOW Command Script Test C 6 _ C 7 C 8 C kK Load from Card Save to Card Apply Interface connector Edit Trigger Scripts dialog box as opened under Options Edit Trigger Scripts Using Trigger Scripts you can make the Omnia 6 do things with contact closures that would norm
115. mputer will use under the drop down list box labeled Port If the Omnia and computer are connected by a straight through serial cable you should be able to connect and control the Omnia6 fm locally using the remote control program The Omnia is designed a DCE device and has a DB 25 female RS 232 port connector Your computer will typically be a DTE device and will usually have either a DB 9 or DB 25 male connector Since only connections between the same type of equipment require a null modem cable DCE to DCE or DTE to DTE the Omnia to PC cable should be a straight through type A null modem cable will not work Connecting via Modem Configure a new connection also entering the telephone number to which the Omnia 6fm s Modem Card is connected If your computer needs to dial an access code such as 9 to get an outside line that must be entered as well Sometimes if the outgoing connection passes through a PBX it might require a short pause between the outside line access code and the telephone number you re dialing In this case the telephone number will need to have a comma inserted into it after the 9 In the standard Hayes command set a comma is a pause character Example suppose you need to connect to a remotely located Omnia and it is connected to telephone number 555 1234 in Area code 717 To make things more interesting your local PBX system requires you to dial a 9 to get an outside line In this case you ll need to
116. municate with the DSP s host port Note that the DSP and memory location referenced can change Failed routing contact CE a fatal error The operating system was unable to establish the correct signal path routing through the DSP chain Omnia 6 Use and Installation Guide Version 1 00a 103 104 Clearing corrupted Non volatile RAM contents Occasionally during a software upgrade the contents of the motherboard s on board non volatile RAM NVRAM will contain entries that are inappropriate for the version of software that has just been installed An excellent example of such behavior is a unit that has been upgraded from DSP software version 6 00 13 to 6 01 00 The different and finer calibration of the Limiter Output controls in the later version causes an index mismatch in the lookup table for the controls at the first boot up Until the user adjusts each Limiter Mixer control manually to re index the controls the Limiter Mix values can be different from what was in the earlier software To reset the motherboard non volatile RAM to prevent or cure such behavior it is necessary to temporarily remove a shunt jumper on a three pin header labeled S1 at the left rear corner of the motherboard see below Remove the Omnia 6 from service Make certain that no power is applied to the unit Remove all 30 top cover screws and set them aside Remove the lid and set it aside Move shunt jumper S1 from the NC to the NO position
117. n Eight of the pins are trigger inputs and the remaining pin is the ground reference The trigger inputs can be used to dynamically alter the Omnia 6fm s operation in response to logic signal transitions at the interface connection There is a unique response to each trigger input that is both go high and go low transitions are sensed With eight inputs and two sensed states for each one sixteen unique trigger events may be sensed to control the Omnia 6fm in response to these input logic transitions Virtually ANY parameter of the Omnia can be controlled using the Trigger Scripts The Trigger Script Interface Editor is a standard component of the Omnia 6 Remote Control application and is covered in detail in Chapter 6 The Pinout of the Omnia 6 rear panel DE 9 Interface connector is as follows PIN 1 activates Trigger Script 1 IN 2 activates Trigger Script 3 IN 3 activates Trigger Script 8 IN 4 activates Trigger Script 6 IN 5 is connected to ground IN 6 activates Trigger Script 2 IN 7 activates Trigger Script 4 IN 8 activates Trigger Script 7 vue DTP IN 9 activates Trigger Script 5 6 Omnia 6 Use and Installation Guide Version 1 00a Powering Up When the Omnia 6fm is first turned on an operating system start up screen is displayed on the left hand display Under normal conditions it should appear as Telos FrontPanel 12 1 0 BootLoader v0 7 010 Copyright 1997 2001 Accelent Systems Inc Built May 24
118. n accurate modulation monitor available If one is available connecting an oscilloscope to the composite output of the modulation monitor will further aid in observing the overshoot performance of the system Good Clean Source Material A well respected processing colleague once said Garbage in produces more garbage out He was not wrong If your source material is poor or played on poorly performing playback equipment you will not get maximum sonic benefit from your processor Modern audio processors magnify good or bad whatever is present in the source material Anomalies that you may perceive to be processing problems may in fact be source material problems that are being exaggerated by the processing Make sure that you start out with 44 Omnia 6 Use and Installation Guide Version 1 00a 45 a good first step good source material Studio Microphone Processing This may appear trivial but the perceived sound of live voices over the air can change dramatically with different microphone processing systems There is a high probability that the sound of your on air microphones will change when you change on air processors If you utilize microphone processing you may have to readjust it to suit the operation of your new processing system Most announcers develop a comfort zone with respect to how they perceive their voice on the air especially in their headphones When that comfort zone is changed or modified
119. n the Input Output and Processing meters 5 While in the Input menu and observing the Input meters adjust the left and right input level controls until the input meters are peaking no higher than 12dBFS 6 Connect the audio outputs that are appropriate for your installation 7 If you are using the Analog or Digital audio outputs navigate to the Output Menu and adjust the output levels for the equipment that follows the Omnia 8 If you are using the Composite Outputs navigate to the Encode Menu and adjust the Composite Outputs to match the device following the Omnia 6 You re now ready to go on the air Note that the Omnia 6 is shipped with the RocknRoll preset as the default While leaning toward the competitive side it provides a good generic starting point with a rich and balanced sound which is a good starting point for nearly every format Remember that our preset names do not necessarily mean that the preset is useful for only the formats to which the name refers Feel free to experiment Chapter 1 Pre installation We believe the Omnia 6fm is the easiest processor to install in its class but please take a few minutes to read through this chapter before proceeding with the installation Pre Installation Tasks This section offers common procedures for installing your new Omnia 6fm processor Note that there are additional installation and operation tips presented in Chapter 4 that may pertain to your specific insta
120. nce especially if a composite STL is used unwanted noise will be added to your signal robbing you of loudness e Is the STL a Discrete or Composite system If a discrete system is used there must be a provision for a stereo generator encoder at the transmitter In that instance it is imperative that this stereo generator encoder not introduce any distortion or overshoot into the system Most stand alone stereo generator encoders employ some form of low pass filter and safety clipper These sections can add significant distortion and modulation overshoot if not set up properly If a composite STL is used the multiplexed output of the Omnia 6fm can be connected directly to the STL At the transmitter location the composite receiver can be directly connected to the exciter e Overshoots Some analog STL systems especially those manufactured before 1990 can generate significant overshoots due to several possible design deficiencies Subsonic bounce can be caused by an AC coupled modulator demodulator in the STL system and this alone can cause 2 dB of lost loudness One method of verifying that a composite STL system is free of overshoots is to connect an oscilloscope to the STL receiver and monitor the composite waveform paying special attention to the integrity of the low frequency square waves Of particular interest is the square ness of the low frequency waveforms and whether there is any noticeable grass or peaky
121. nd Rip The Knob Off That s the kind of power and capability Omnia 6 delivers Beyond the extensive laboratory development and testing of Omnia 6 we ve taken it to the field and compared it with every other processing system available and have done so worldwide It s the sound that matters and I truly feel that you ll significantly improve your on air sound and further your competitive position with Omnia 6 Omnia 6 also benefited from a few other individuals who were behind the scenes You guys know who you are To each of you another heartfelt thanks But I above all need to express my gratitude and love to someone who has influenced me as a person a thinker an engineer a businessman and by way of his example showed me that you can always raise the bar my father Sam Foti Dad my part of the Omnia work has been blessed with a spiritual beauty that you ve instilled in me as your contribution to my life has helped beyond your wildest imagination Thus I dedicate Omnia 6 to you for all that you are Not only do you have in your possession the best sounding audio processor available you also have the full support of our organization If you have something to say we re here to listen We ve been fortunate through the past that people like you have taken the time to offer us valuable feedback and review of our endeavors You can now see the result of that as you are now rewarded with the next step forward Without f
122. nds a bit thin you can add a small amount 2 dB of Phat Bass boost to restore warmth to the overall air sound Limiters Crossover XO l Omnia controls Limiters Crossover Super Low Mid Low O 2 g Mid High High Super High e ES HEADPHONES Limiters Crossover XO The audio signal from the Enhance section is again split into six bands to drive the multiband limiter section The limiter crossovers frequencies are fixed at 85 330 1000 3000 and 7500 Hz Factory drive settings are initially recommended but the overall density can be adjusted by changing all 6 drive controls up or down an equal amount More drive to the limiters will increase the density of the audio providing a louder but more squashed sound Less drive will reduce the density and provide a more open more dynamic sound Reducing the overall limiter drive too much can rob you of loudness Note also that the upper three limiter bands 4 5 amp 6 will generally not show as much average gain reduction little or none at times as the lower three bands This is normal and accounts partially for the improved clarity in the Omnia 6fm You will notice brief fast bursts of significant gain reduction on these bands especially on bright dynamic program material and vocal sibilants If you are familiar with the limiter section in the Omnia Classic you ll remember that significant gain reduction was necessary in order to achieve extreme loudness That is NOT the cas
123. nection for Local Communications When a computer can be located near the Omnia 6fm it may be convenient to use a direct serial cable connection rather than dial up Use a standard straight through serial cable null modem cables will not work A typical serial cable will need a DB 25 male connector for the Omnia 6fm end and probably a DB 9 female connector on the computer end You should verify the exact type required by your computer Using an Ethernet Network Based Connection For Network connections check the Connect over Ethernet box and enter the IP address of the Omnia 6fm in the box provided The TCP IP address entry format is xxx xxx xxx xxx The default TCP IP address of the Omnia6 is 192 168 0 191 Technical note the Omnia 6 Remote Control communicates with the Omnia 6 using a Telnet session on Port 1254 If you are unable to communicate with the Omnia through a network firewall the first thing to check is whether traffic on port 1254 is being permitted Enter the password for the unit in the Password box If nothing is entered you will be asked for the password at the time you connect to the remote Omnia The default password for all remote control connections is tomtom all lower case The password may be changed at any time using the Omnia Remote Control s File Change Password option Note that you MUST be connected to the Omnia in order to change this password Note also that the password change becomes valid the N
124. ner units are usually available on a first come first served basis Your Omnia Customer Focus engineer will assist you with the necessary arrangements Via the World Wide Web The Omnia Web site has a wide variety of information that may be useful for product support applications information software updates etc The URL is http www omniaaudio com Via E Mail The customer service e mail address for Omnia is support omniaaudio com Via Phone amp Mail USA and non European Countries Customer service is available by telephone Monday Friday between 9 00 A M and 6 00 P M USA Eastern time zone Phone 1 216 241 7225 Fax 1 216 241 4103 Shipping Information Omnia Customer Service 2101 Superior Avenue Cleveland Ohio 44114 USA Via Phone amp Mail for Europe Service is available from the Omnia Europe office in Freising Germany Phone 49 8161 42467 Fax 49 8161 42402 Shipping Information Omnia Europe JohannistraBe 6 D 85354 Freising Germany Note To ensure prompt service the Return Authorization number must be written prominently on or near the shipping label on the box Omnia 6 Use and Installation Guide Version 1 00a 111 Preset Name Omnia 6 Parameter Worksheet Date Parameter By Parameter Enhancers Value Limiters Mixer Parameter LF AGC Parameter Super Low Band Deep Bass Low Band Mid Low Band Mid High Band High Band Super High Band mi Drive
125. ng practice to allow one blank rack space immediately above and below the Omnia especially if equipment generating significant heat is located below the unit Install a IRU 1 75 vented or solid panel to fill these spaces 1RU Blank or Vent panel required 1RU Blank or Vent panel recommended Omnia 6fm Rack Mounting Requirements The processor should be installed into a thoroughly grounded 19 equipment rack Refer to Chapter 4 Omnia 6fm User Tips for additional considerations on where to physically locate your processor AC Connection IEC The Omnia 6fm utilizes a heavily filtered universal AC power entry module Its integral power switch is located just above the IEC power cord receptacle The Omnia6 fm s voltage sensing switching power supply allows it to operate on AC mains voltages from 100 to 240 VAC 50 60 Hz In the USA plug the provided IEC type AC power cord into the unit and then into a grounded AC outlet Outside of the USA you must use the appropriate power cord that complies with local electrical regulations Press the I side of the rear panel power switch to turn on the unit The Omnia6 fm is designed to be continuously powered however pressing the O side of the switch turns off the unit for servicing Omnia 6 Use and Installation Guide Version 1 00a 3 When power is first applied it takes approximately ten seconds to load the DSP code from the rear panel PCMCIA memory card During system
126. ng the Process Menu to obtain the sound you desire Your edited preset is then saved to the PC Card under a name you choose and can be reselected at any time just like the factory presets Editing presets is covered in detail in Parameter Editing below Omnia 6 Use and Installation Guide Version 1 00a 53 54 Always remember that when crafting that special sonic personality for your station Omnia 6fm gives you the power to create a sound that can be totally different from and far better than that of your competitors We ve enjoyed giving you that power and we hope that you enjoy using it A special preset PROOF OF PERF can be loaded in order to stop all audio processing in the Omnia 6fm while still passing signal through all of the processing sections When this preset is recalled the AGC Limiter and Clipper thresholds are raised so that no signal processing takes place The purpose of this preset is to allow the input output characteristics of the unit to be measured and the slopes of the input high pass filter and output low pass filters to be measured and or verified Note that this preset is only meant to stop processing activity so that filter slopes such as pre emphasis can be verified It does not necessarily configure the unit for the widest possible dynamic range optimized signal to noise ratio etc Loading A Preset From the Main Menu highlight Preset and click the jog wheel LOUDNESS MONITOR Select and m
127. nt ways All I can say is that we would not be where we are without the heroic and brilliant efforts of all of you working together I would be remiss not to mention one individual though Jeff Keith the leader of Team Omnia His creativity passion and commitment to our success have helped all the various talented and sometimes chaotic crew unite in a common goal To build a processor so great it would surpass even my high expectations Jeff you and your team have succeeded Thank You It s our goal to set the standard by which all others will be judged The rules have changed and Omnia is the reason why What was once a truly small company consisting of only my cat Vito and myself has now expanded to the point of having the best talent in every area of product design engineering and marketing Not to mention we now have the vital assistance of three cats Omnia Zephyr and Mocha If I may say so our pool of engineers for DSP development and software design is probably the finest in the radio industry My partner in crime Steve Church brought DSP into the broadcasting field in the mid 1980 s and we ve been strengthening our abilities ever since Sharing Telos ingenuity for DSP design has been tremendously beneficial to our work on Omnia If you thought the original Omnia made noise on the dial all I can say is look out It s like one of the top of the hour station ID s Scott Shannon used to jam on Z 100 Lock It In A
128. nto the Phone box The choice is yours As pointed out earlier a common customer need is the ability to tell the modem to ignore a non standard dial tone For that situation the most commonly used options are X0 Disables both busy and dial tone detection X1 Disable busy and dial tone detection X2 Disable busy detection enable dial tone detection X3 Enable busy detection disable dial tone detection X4 Busy and dial tone detection enabled Omnia 6 Use and Installation Guide Version 1 00a 81 82 Given this information a possible initialization string example configured to ignore the dial tone before dialing could be ATX0w xyyyzzzz or ATX0w x yyy zzz Where AT is the start of the standard modem command string and Where X0 tells the modem to ignore busy and dial tone detection and Where x is the number to dial to reach an outside line if required and Where is a pause and Where yyy is the dialing prefix and Where zzzz is the dialing suffix There are many resources on the World Wide Web pertaining to the possible Hayes command set initialization string options You can locate such resources by using the search text Hayes Command Set in your Internet browser Two such sites with resources that have been helpful are http www modemhelp net basicatcommand shtml http www modemexpress com 82 Omnia 6 Use and Installation Guide Version 1 00a 83 Using a Direct RS 232 Con
129. nvironment the host microprocessor or a combination of both We recommend that you contact Omnia Customer Focus for immediate attention 4 Unit has power the audio is working but both front panel displays show the rotating Omnia logo and then stop This indicates a communications error between the front panel and the master motherboard CPU or a failure of the motherboard to initialize either the DSP code or operating system In the unlikely event that your Omnia 6fm is out of service and in need of assistance from Omnia please see the section entitled Obtaining Service for contact information 108 Omnia 6 Use and Installation Guide Version 1 00a Performing software upgrades in the field 109 The Omnia 6 design is extremely flexible in that it allows unlimited possibilities for software updates and feature enhancements By simply replacing PCMCIA type memory cards the DSP software and or front panel user interface can be updated and new features are added Some software updates will have only one card while others will have two In most cases only the rear panel PCMCIA memory card will need to be replaced as that contains the DSP code and its enhancements AES EBU EXI Snc our COMPOSITE pad 9KHZOUT SCA INPUT kat INPUTS ea OUTPUTS g RIGHT ETHERNET bd CONTROL Eh ie EXPANSION CARDS Memory Card g e Omna A mwa UNIVERSAL POWER INPUT 100 240VAC
130. oadcasting environment MAF monitoring MPX power File Functions Options Calibraton Comment Help rona _ st ne He See e Du lwrx I son see Start 30 11 2001 11 18 Calibration date 01 03 2000 Length 01 10 07 Ref Const 1 39D 8 F MHz 4207 Pe dB 0 67 Pmax dB 0 69 Ref 0dB ITU BS412 7 23 i 3 i i i s EXT MPX input VAR 3 85 Vpp MPX ref 75 kHz Pilot ref 7 5 kHz Diff std Auto stereo De emph Without 19k 57k coherence Yes Ves Setting the threshold control to values above 0 0dB will cause a like increase in average multiplex power above the 0 0dB limit shown in the above graph Loudness Loss Warning If your country s regulatory agency does not require the use of the ITU BS 412 Multiplex Power Limiter make certain that the BS 412 Power Limiter is set to off or severe loss of loudness will result For example when the ITU BS 412 Power Limiter is switched on and set at 0 0dB there is approximately a FIVE dB loudness loss over the limiter being switched off Omnia 6 Use and Installation Guide Version 1 00a 67 68 Saving Renaming and Deleting Presets Saving Presets Upon completing a preset editing session the processing changes should be stored This way they can be recalled later or even transferred to another Omnia6 fm Storing the settings writes them to the PC memory Card either by overwriting an existing preset or by creating a new pre
131. odify processing presets here Main Menu The Preset window is then displayed Preset Presets ADULT CONTEMP BYPASS CHR CLASSICAL COUNTRY SOLIDGOLD URBAN ROCKnROLL TALK Move to preset screen list so you can choose a new one HEADPHONES Preset Submenu Rotate the jog wheel two clicks clockwise to highlight the Choose option Clicking the jog wheel once will 54 Omnia 6 Use and Installation Guide Version 1 00a 55 move the highlighting to the lt Exit gt selection in the preset name list Rotate the jog wheel clockwise to scroll down the list highlighting each preset as it goes Once you have highlighted the desired preset name just click once to load that preset into the Omnia 6fm To exit the preset selection list rotate the jog wheel counter clockwise until the lt Exit gt option is highlighted Then click once The name of the preset that is currently loaded is always displayed in the lower left corner of the metering display screen Parameter Editing The Omnia 6 system architecture has a great number of audio processing functions and features The following sections detail the adjustments one can make Before tackling this section you must be familiar with navigating through the menu system and be comfortable with how the Omnia 6 jog wheel and click functions work If so you re ready to tackle Omnia 6 s more sophisticated adjustments To edit a preset it must first be loaded into the Omnia
132. of the audio waveform The Limiter section s job is to quickly grab the signal reduce the gain to the proper operating range and then return the gain to normal until the next peak signal comes along Peak energy must be detected and adjusted in a quick and accurate manner while at the same time not interfering with the sonic integrity of the audio signal For this reason the Limiter sections operate very quickly with special background instructions to govern their behavior and strictly on an as needed basis Since the processing displays are capable of providing a wide range of information we do not recommend setting up the system based on any specified meter indications Instead we recommend setting up the processing by using your ears to judge the sound We ve provided the meters only to analyze the signals and aid you in adjusting the specific parameters needed to achieve your desired sonic results Like a speedometer the meters are a guide not the road Our Factory Presets Are Only Starting Points Numerous factory presets have been provided for you to use as starting points for customizing your stations sound A preset is simply a large table of values representing all of the control values for every control listed in the menu tree When you Choose a preset the control values are loaded into the DSP structure reconfiguring the Omnia 6fm s processing Omnia Telos does not warrant in any way that these presets are de facto standar
133. ol and clipper algorithms used the subjective sound quality of any audio processor bears little relationship to its measured electrical performance Overall Specifications System Frequency Response Complies with the standard 50 or 75 microsecond pre emphasis curve within 0 50 dB 30 Hz to 15 kHz The analog left right outputs and AES EBU Digital outputs can be configured for flat or pre emphasized output System Signal to Noise Ratio gt 80 dB de emphasized 20 Hz 15 kHz bandwidth referenced to 100 modulation The measured noise floor is highly dependent upon the setting of the Input and Output Gain controls The Omnia 6 s noise floor is primarily governed by the dynamic range of the Crystal Semiconductor CS5360 A D Converter which has a specified Dynamic Range of 105dB The dynamic range of the Omnia 6 DSP chain is well in excess of 120 dB Typical SNR using the FactTest2 preset is greater than 80dB RMS in a 15 kHz bandwidth referenced to 100 modulation System Distortion Less than 0 01 THD 20 Hz 7 5 kHz second order harmonic distortion above 7 5 kHz is not relevant in the FM system due to the removal of harmonics by the system s 15 kHz low pass filter System Stereo Separation Greater than 65 dB 20 Hz 15 kHz greater than 70 dB typical Analog I O Analog Audio Input Configuration Left Right Discrete Stereo Electronically balanced floating and symmetrical Input impedance 10k ohms resistive
134. ol was set to Freeze This will reduce hiss and other high frequency noise The RTP levels can be tailored for each individual AGC band as desired Use the RTP Speed to set the amount of time it will take the AGC to return to the set platform level There are four choices Freeze Slow Med and Fast The default setting is Freeze which freezes the gain whenever gating occurs Therefore to activate the RTP for that band just select a speed As mentioned previously the RTP speed is slightly affected by the value of the attack time that is set for that band The opposite is not true RTP Speed does not affect the operation of the attack release functions Freeze can be considered the off mode for the RTP function Use RTP Level to set the platform level There are three choices 5dB 10dB and 15dB The default Omnia 6 Use and Installation Guide Version 1 00a 59 60 value is 10dB Keep in mind that the RTP function must be activated for this parameter to be relevant Note also that for some presets small changes we made to the compression ratios will affect the displayed value of the RTP For instance if you set the RTP gain value to 10 but notice that the band gain recovers to 12 when gated it is because we have set a slightly higher ratio for that band Note that ratios are critical to the open and musical sound of the Omnia6 fm and therefore we do not offer them as user adjustments If you find that the Multiband AGC
135. operly this specialized low frequency enhancement tools can deliver the thunderous bass and warmth that the Omnia Enhancers Space FX is known for and it can do so without making the sound muddy It serves to greatly complement the Omnia 6fm s clear and open high end to provide a well balanced competitive CD like sound that is HEADPHONES both powerful on the dial as well as pleasing to the ear Enhance Submenu Deep Bass EQ For those who demand thunderous bass the Omnia 6 has it Up to 12 dB of thunder can be added to shake your listener s walls This is not a simple bass boost but a rather sophisticated concept that takes into consideration the time alignment of the low frequencies as they pass through the entire Omnia system It allows a loud clean low end with absolutely no sacrifice to the overall loudness of your signal We won t tell you where the control is in the signal chain But we will tell you that Deep Bass function is a shelf boost at 85 Hz utilizing a phase compensated 12dB octave slope to emulate the EQ function Phat Bass EQ Phat Bass is a unique enhancement that adds filtered harmonics of the lower registers to the upper bass frequencies The algorithm extracts information contained in the initial attack to do its work and low frequency texture is therefore emphasized Older recordings sound fuller or phatter with the added illusion of loudness Phat Bass EQ also helps radios with small spea
136. or to turn off the 19 kHz pilot tone when it is run syspara 9 says to edit the Pilot Level The 1 says select Off Next type in syspara 25 2 lt enter gt This command sets the processor to switch the input to mono left when run syspara 25 says to edit the Mono Mode setting The 2 says select mono left When you are finished the contents of the Trigger LOW Command Script box should look like syspara 91 syspara 25 2 If you wanted to use the sum of Left and Right channels for your mono source we would have entered the command syspara 25 4 instead of syspara 25 2 Trigger Script Example for Switching to Stereo Operation Now we ll create a Trigger High Command Script which will return the Omnia to stereo operation and put the pilot back to 9 injection when the switch contacts open In the Trigger HIGH Command Script box type in syspara 9 32 lt enter gt This tells the processor to activate the 19 kHz pilot with the injection level set to 9 0 syspara 9 says to edit the Pilot Level The 32 says select 9 0 pilot level Now type in syspara 25 1 lt enter gt 29 66 This tells the processor to switch the input to Stereo syspara 25 says to edit the Mono Mode setting The 1 says to select stereo mode When you are finished the contents of the Trigger HIGH Command Script box should look like syspara 9 32 syspara 25 1 These four commands are now a completed
137. perior performance can be achieved along with having easy access to the processing for monitoring and adjustment Digital STL Use Ifthe Digital STL employs a data reduction codec compression we strongly recommend that the Omnia 6fm be located at the transmitter site See Pre Emphasis Where To Insert below If the Digital STL is a linear system without data compression we still recommend placing the processor at the transmitter site However the Omnia6 fm can be placed at the studio if you follow a few guidelines and are willing to accept some limitations See Interfacing with a Digital STL and or Exciter below In this scenario there also must be a provision for a stereo generator encoder at the transmitter most digital exciters provide this function therefore the composite clipper in the Omnia 6fm cannot be used Many exciters include some form of safety clipper or limiter as well but these can add distortion and unexpected overshoots if not set up properly Monitoring Point Once Omnia6 fm is on the air you should select a good acoustical location for monitoring and adjusting it We feel that a good tuner with strong reception feeding a good set of studio monitor speakers is probably sufficient While car radio and other typical listener situations are important in judging the sound of Omnia6 fm against other stations in your market they should not be your main reference points In addition there should be know
138. phasis selection If choosing a de emphasis time constant be sure it matches the pre emphasis time constant Bear in mind that if Pre Emphasis is turned on selecting De Emphasis Off means that the outputs will be pre emphasized Note The De Emphasis setting does not affect the composite output which always follows the Pre Emphasis setting Note The headphone output is automatically appropriately de emphasized when any value of pre emphasis is being used Output Sample Rate One of four standard digital sample rates 32 44 1 48 and 96 kHz can be selected The output sample rate can be set to follow the incoming sample rate on the digital input or it can be set so that it locks to the External AES Sync Input sample rate Peak Output Level De emphasis CO off E 50uS O 75us Output Sample Rate O 32KHz ITU BS 412 Multiplex C 44 1 KHz Power Limiter C 48 KHz C 96 KHz C Sync to Input E Sync to External Left Channel Analog output lavel adjustable between 0 0 and 22dBu 22 to 0 dBFS HEADPHONES Output Menu showing Output Sample Rate Selections 28 Omnia 6 Use and Installation Guide Version 1 00a 29 Multiplex Power Limiting In certain parts of the world the power of the overall multiplex signal must be controlled to prevent or reduce adjacent channel interference to closely spaced stations The currently enforced standard falls under the ITU BS 412 regulations The Omna6 fm has a very effective Multiplex Power Limi
139. power up the front panel LCD screens display several status screens while the operating software and DSP code is loaded Once the main Omnia 6fm Main Menu is shown on the right screen and the Meter Screen is shown on the left display the unit is ready for use Rear Panel Connections bad e AES EBU 40 100 EXT SING SUT N COMPOSITE OUTPUTS i ssi i lt lt CSstsi i i i A TT ETHERNET 1 2 CONTROL eerie of Oma E 1 te UNIVERSAL POWER INPUT 2101 SUPERIOR AVENUE 100 240VAC H R EE ELANDOHO 44114 Q9KHZ OUT SCA INPUT anette 728 De BA ANALOG INPUTS ANALOG OUTPUTS aan LEFT RIGHT LEFT RIGHT r m EXPANSION CARDS e 0 s Ol ci h j 4 e e e Omnia 6 Back Panel Connections Audio Inputs Analog amp Digital Female XLR Balanced XLR type connectors are used as input connectors for both the analog and AES 3 digital audio Both analog and digital input sources may be connected simultaneously however only the input source that has been set in the Input menu is active Analog Digital Input source selection is done through the Input Source software parameter setting in the Input Menu The stereo analog inputs are designed for standard 4 dBu balanced signals Pin 2 is Hot The digital AES 3 inputs IN and EXT SYNC accept any sampling rate between 32 and 96 kHz No user adjustment is necessary on the AES input since a high quality sample rate converte
140. pper stage Usually the limiter thresholds are adjusted as a fine polish on the final sound If you are unsure about how to use the Limiter Thresholds then we recommend that they be left at their well researched factory settings I Omnia 6 Use and Installation Guide Version 1 00a 63 64 Final Mixer Mix Omnia controls Limiters Mixer Super Low Mid Low muse Mid High i Super High EASE ES HEADPHONES Limiter Mixer final mixer This is the final summing point for each of the multiband limiter sections before the signal reaches the final clipper Care should be used when adjusting this section as too much level from any particular band could cause an excessive amount of clipping distortion to that range of frequencies A tribute to this fact is the extremely fine 0 10dB step resolution of the controls Adjusting all 6 controls an equal amount is virtually the same as adjusting the Clipper Drive control in the Clippers Window If your desire is to provide some custom EQ to the sound it is better to perform that function using the drive levels in the AGC or Limiter X Over menus instead of the limiter mixer controls Like the limiter threshold controls the final limiter mixer is mainly for minor fine polish to the overall sound Adjustments in this section must be done with care 64 Omnia 6 Use and Installation Guide Version 1 00a 65 Clippers Clip Clippers Bass Clip Threshold Clipper Dri
141. present in the Phone box signal the Omnia Remote program to attempt a connection via modem If you need to use a Modem Initialization string you may enter it into the Modem Init string box If you require a modem initialization string and feel more comfortable building the entire connect string within the Phone box you may do this See Using Custom Modem Initialization Strings for more information Omnia Remote Control supports a wide variety of Hayes command set compatible modems If you have difficulty using your modem you may call Omnia Customer Focus for assistance but please gather as much information about your modem as possible before doing so On the Omnia Side Remote Control Using the Supplied PCMCIA Modem Omnia6 fm comes complete with a PCMCIA type modem card and you must have the modem installed in order to use Omnia remote control over a dial up connection Before use ensure that the Omnia approved PCMCIA modem card is fully inserted into the lower PC Card slot on the back of the Omnia Press on the modem card s XJACK connector to extend the modular telephone jack Using a standard RJ 11cable connect your telephone line to the Omnia modem Make a note of the telephone number corresponding to this line as you will need it later when you configure the Omnia Remote Control program Note The modem card can be safely installed and removed when the Omnia s power is off Only the PCMCIA modem card supplied with the
142. ptions Menu selecting Auto Connect to Last Then the program will always connect to the Omnia 6fm using the last used startup connection entry Note that if you have not entered a Password while editing the connection type you will be prompted for it each time you connect to the Omnia Terminating a Connection From the Options Menu select Disconnect Closing the program will also terminate any connections Operation The Remote Control Program for Omnia 6fm looks very similar to the actual Front Panel and works similarly with some added enhancements e Multiple control windows may be open at the same time e The scroll wheel on mice so equipped is supported for fast easy adjustment of parameters e The ability to save load and print presets and system parameters to the computer in the File Menu This is very handy for reference and backup purposes e The ability to edit and load Trigger Scripts as described below 84 Omnia 6 Use and Installation Guide Version 1 00a 85 Using a Terminal Program and Direct Connection It is sometimes useful to use a Direct Serial Connection and a terminal program such as Windows HyperTerminal to gain access to the Omnia s command line interface While operating the Omnia in this manner is certainly not for beginners the information that can be captured from the rear panel RS 232 port especially during system boot up can be very useful for troubleshooting purposes Upon occasion Omnia Custo
143. r is built into the unit Individual channel gain and level setting for both analog and digital is done using the Input Gain software parameter settings in the Input Menu A Note About Relative Phase If the relative phase of your installation including the Omnia 6fm differs from that of your existing system your announcers may feel that they sound weird in their headphones If this occurs then the relative phase of the processor is 180 degrees from what your air talent is used to To remedy this you can either reverse the polarity of both of the analog inputs or change the Invert Both software parameter setting in the Omnia 6fm Input Menu Audio Outputs Analog amp Digital Male XLR Individual Left and Right analog outputs are available on two male XLR jacks as is a stereo digital AES 3 output The digital output with selectable output sample rate is produced directly from the output of the final processing section The analog output is derived from a D A converter driven from the digital output Note Both the analog and digital AES 3 outputs are always active and can be used simultaneously 4 Omnia 6 Use and Installation Guide Version 1 00a Composite Outputs BNC These two low impedance outputs Composite 1 and Composite 2 are each capable of driving up to 100 feet of RG 58A U coax cable The output levels are individually adjustable between the outputs so the unit can operate as a composite DA to drive a variet
144. r system audio operating levels are a must It is important to make certain that the input and output levels of the Omnia 6fm are set appropriately If they are set too low you will compromise the signal to noise ratio of the system If they are set too high you may run out of headroom and encounter clipping on signal peaks In addition operating a processor with insufficient level into an STL system can cause loss of modulation and loudness If you are comparing the Omnia 6fm with another processor be sure they are both operating at the same levels Your modulation monitor is an important tool in any processing comparison and for getting the most out of your processor Omnia 6 Use and Installation Guide Version 1 00a 45 46 Omnia 6fm Connections Output Connection Options Tests have shown that post processing audio power in the low frequency region is so strong that it may affect the performance of some exciters It is imperative that your exciter have a dual speed PLL in the AFC otherwise it may unlock If one of your processing goals includes solid powerful bass on air this is an important key point that cannot be overlooked or loudness will be lost due to inefficient modulation Output choices are Left Right Analog This option is provided for compatibility only and is the least recommended choice The DSP based digital stereo generator included in your Omnia 6fm provides superior performance and should be used instead of th
145. rded materials sound fuller or phatter with the illusion of added loudness The pleasing low frequency harmonics generated by the Omnia s Phat Bass algorithm helps your station sound bigger and fuller on radios with smaller speakers such as portable or desktop radios This gives your listeners the illusion of deeper bass response from their radios than they re actually capable of Warmth EQ The Warm Bass parameter is a second order shelf boost with a corner frequency of 150 Hz Warm Bass compensates for program material that is naturally lacking in upper bass punch The parameter is adjustable over a 6 dB range Stereo EXP This is a DSP stereo enhancement effect that enhances the stereo soundfield without unwanted side effects such as unnatural imaging or exaggerated multipath Program audio previously lacking in stereo width will have noticeably increased ambiance and dimension when Stereo EXP is active Vocals stay up front and the sonic details of musical instruments are heard with an apparent slight loudness increase when listening in stereo The stereo width is automatically controlled to avoid over enhancement Multiband Dynamic Peak Limiter Not just simple limiter sections using single time constants but rather a sophisticated series of processes which make adjustments based upon the peak weight of the signal These advanced algorithms rely upon peak weighted calculations to determine the strength of a transient peak which then
146. rence Automatically accepts sample rates between 32 and 96 kHz Composite Outputs Composite Baseband Outputs Configuration Source Impedance Load Impedance Output Level Range Pilot Level Pilot Stability D A Conversion Signal to Noise Ratio Distortion Stereo Separation Linear Crosstalk Non linear Crosstalk 38 kHz Suppression 76 kHz Suppression Pilot Protection 57 kHz RDS RBDS Protection Connectors Maximum Load Capacitance Maximum cable length Two electrically independent outputs Software based level adjustment 10 ohms or 75 ohms internal jumper selectable Single ended and floating over chassis ground 50 ohms or greater load is suggested 1 25 V p p to 9 50 V p p software selectable Adjustable from 6 0 to 12 0 in 0 1 steps 19 kHz 0 5 Hz Tighter tolerance available on special order Burr Brown PCM1704 24 bit sign magnitude D A converter 85 dB typical 75 uS de emphasized 15 kHz bandwidth referenced to 100 modulation lt 0 02 THD 20 Hz 15 kHz bandwidth 75 uS de emphasized referenced to 100 modulation Greater than 55 dB 30 Hz 15 kHz gt 80 dB main to sub or sub to main channel referenced to 100 modulation gt 80 dB main to sub or sub to main channel referenced to 100 modulation gt 70 dB referenced to 100 modulation gt 80 dB referenced to 100 modulation gt 65 dB relative to 9 pilot injection 1
147. roll off functions Omnia 6 Use and Installation Guide Version 1 00a 42 43 Chapter 4 This chapter presents installation and operation information specific to the Omnia 6fm A Parameters Worksheet located at the rear of this manual may be photocopied to record the parameter settings used for specific processing presets Processor Location Believe or not this is an important consideration Where you choose to locate the processor at the studio or at the transmitter can have a profound impact on the overall performance and your stations loudness on the dial We present a few considerations that will aid in making this decision In most applications installing the processor at the transmitter site provides a solid coupling between the processor and the FM exciter Since there is no other transmission link between the processor and the exciter to degrade the tightly controlled peak output levels modulation performance and therefore competitive loudness will be maximized The drawback to this setup is that the processor is located in what is usually a remote acoustically noisy and electrically unfriendly environment Omnia6 fm remote control can be used to make processing changes from elsewhere If you plan to set up the processor at the studio consideration must be given to these STL factors Analog STL Use Is the STL path a clean shot If the path is noisy or is plagued by fades multipath or other types of interfere
148. ry default is 19 200 baud Security Lev el It is advisable for the user interface to be password protected for controlled access There are three levels of password protection In levels 1 and 2 the visibility of each submenu except System can be set in the Security Config screen in the System Menu Level 1 User allows access only to the Menus selected in the Security Config window parts of the System Menu and the headphone level control The default password for this level is user all lower case Level 2 Advanced User allows access only to the Menus selected in the Security Config window parts of the System Menu and the headphone level control The default password for this level is advuser all lower case Level 3 Master or Engineer level allows access to all submenus The default password for this level is engineer all lower case There is also a Stealth Mode option available which when selected suppressed the gain reduction metering and the current Preset Name when the Omnia6 fm has been locked The I O metering continues to function normally and the currently running Preset Name is replaced by the text System is Locked It is advisable to change the passwords once the Omnia 6fm is installed Passwords are case sensitive and can contain up to ten characters Omnia 6 Use and Installation Guide Version 1 00a 33 34 Backlight This setting determines the time it takes for the LCD scre
149. s 91 System Parameters 92 Setting New Syspara Values 93 Using the Script Editor 93 Example Switch to Mono 94 Example Switch to Stereo 94 Interface Connector 96 One Way Scripts 96 Scripting via Daypart Scheduler 98 7 Troubleshooting Rear panel serial port setup 100 Normal boot up message 101 Audio Failure Alarm 102 Audio Restoration Alarm 102 Diagnostic Messages 103 Clearing corrupted NVRAM 104 Diagnosing abnormal boot behavior 106 Narrowing down problems 107 Performing software upgrades 109 Obtaining Service 111 Preset Parameter Worksheet 112 10 11 12 SAFETY Read All Instructions All safety and operating instructions must be read before operating the product Retain All Instructions All safety and operating instructions must be retained for future reference Heed All Warnings All warnings on the product and those listed in the operating instructions must be adhered to Follow All Instructions All operating and product usage instructions must be followed Heat This product must be situated away from any heat sources such as radiators heat registers stoves or other products including power amplifiers that produce heat Ventilation Slots and openings in the product are provided for ventilation They ensure reliable operations of the product keeping it from overheating These openings must not be blocked nor covered during operation This product should not be placed into a rack unles
150. s consistent across pages and is easy to learn We believe that you will quickly become comfortable with how it works and appreciate its simplicity See the diagram below to learn how each movement of the jogwheel affects the various menu options Clockwise rotation moves the highlighting downward through menu items increases the value when editing parameters or raises the headphone volume The Enter Return or Select button Pressing the jog wheel once selects the highlighted menu item or accepts the current parameter value Think of it as a vertical mouse button Counterclockwise rotation moves the highlighting upward through menu items decreases the value when editing parameters or lowers the headphone volume Jog Wheel Functions 10 Omnia 6 Use and Installation Guide Version 1 00a 11 Level Meters amp Processing Bargraphs DIGITAL L INPUT R RE dBFS 36 Y ae j The horizontal meters show digital sample oureur accurate peak and VU representations of R the left and right input and output levels 5 while the vertical bargraphs show 100 processing activity of the various algorithms The currently selected Preset Name is displayed in the bottom left corner of the Meter Display while the current time is displayed in the lower right corner see i AGC LIMIT EFX Preset CLASSICAL 3 50 08 AM Left hand LCD screen showing I O and process bargraphs Audio I O Level Display Both input and output leve
151. s proper ventilation is provided through following the manufacturer s installation procedures Water and Moisture Do not use this product near water for example near a bath tub wash bowl kitchen sink or laundry tub in a wet basement or near a swimming pool or the like Attachments Do not use any attachments not recommended by the product manufacturer as they may cause hazards Power Sources This product must be operated from the type of power source indicated on the marking label and in the installation instructions If you are not sure of the type of power supplied to your facility consult your local power company Grounding and Polarization This product is equipped with a polarized AC plug with integral safety ground pin Do not defeat the safety ground in any manner Power Cord Protection Power supply cords must be routed so that they are not likely to be walked on nor pinched by items placed upon or against them Pay particular attention to the cords at AC wall plugs and convenience receptacles and at the point where the cord connects to the product Lightning For added protection for this product during a lightning storm or when it is left unattended and unused for long periods of time unplug it from the AC wall outlet This will prevent damage to the product due to lightning and power supply surges 13 14 15 16 17 18 19 20 21 INSTRUCTIONS Overloading Do not overload
152. script for Trigger 1 To test the scripts click the Test button 94 Omnia 6 Use and Installation Guide Version 1 00a 95 above each edit box If no errors or other displays are shown then your script is ready to be used or saved An error indication typically indicates you have a typo in one of your command lines Verify the command is correct and that the index numbers for the parameters or parameter values are correct See the example below for how the completed entries should appear Trigger Interface Script Editor Ed Trigger Trigger HIGH Command Script e 1 2 3 4 5 6 7 8 Q EE 2 a a en Completed Trigger Script entries using the above example In order to use the scripts they must be loaded into the Omnia 6fm This is done by clicking Apply Previously entered scripts in the Omnia 6fm s memory are then replaced by your new scripts To save the edited Script Editor scripts to the PC Card click Save to Card To recall previously edited scripts click Load From Card These can then be sent to the Omnia 6fm by clicking Apply To actually use the scripts you have just written requires that a sustained relay or a switch be connected between trigger input pin 1 and ground pin 5 on the Interface connector on the processor s back panel Setting the relay or switch on shorting pins 1 and 5 together then causes the Omnia 6 to follow the script for go low the unit switches to Mono Left Pilot
153. set It is also possible to delete presets that are no longer needed and deleting unused presets frees up memory space and makes it available for saving newer ones The Omnia 6fm PC Card has the capacity to store up to 75 User Presets Preset Presets ADULT CONTEMP BYPASS CHR CLASSICAL COUNTRY SOLIDGOLD URBAN ROCKNnROLL TALK Move to preset screen list so you can choose a new one HEADPHONES Preset Submenu with save options When processing adjustments are completed a choice should be made to either save the changes over the existing preset if it s not a factory preset or create a new User Preset This is done from the Preset menu If you want to save the changes using the current preset name highlight Save Current and click After prompting you to verify that you wish to save the settings over the currently selected preset the system will save the latest changes made to the current preset name To save the preset under a new name thus keeping the original preset and creating a new preset that will be added to the bottom of the preset list highlight Save Current As and click A Save Preset As dialog box appears on screen so the characters in the new user preset name can be entered The first character in the current preset name will be highlighted and flashing To change this character click the jog wheel This stops the cursor from flashing indicating that the character may now be changed Rotate the jog wheel to
154. ssing sections Note More detailed technical information about the audio processing employed in Omnia 6 can be found in the Technical Papers section on the Omnia web site www omniaaudio com Your Omnia 6fm comprises nine general processing sections as shown below Process g Ea Wide Band Automatic Gain Control om P rocessor Block HEADPHONES Process Menu Block and Signal Flow Diagram Following is a list of these sections followed by an explanation of their functions The name of the process block as displayed on the Omnia 6 menu is shown in parenthesis 1 2 An input Wideband AGC circuit for initial level control WB A five band cross over XO for A five band AGC LO ML MH HI SH A mixer circuit Mix to combine the signals from the five band AGC A bass and stereo enhancement section Enhance A six band crossover XO for the limiter sections Six limiters SL LO ML MH HI SH A final summing mixer Mix and Omnia 6 Use and Installation Guide Version 1 00a 39 40 9 Multiple clipper stages Clip at the output Wideband AGC A very flexible wideband leveler section provides smooth transparent control of the input program This is achieved through two significant Omnia innovations a dual referenced release gate and a hidden intelligent makeup gain algorithm The dual gate reference is a unique process that correlates the dynamics of the audio input signal to a rol
155. step through the available characters With the desired character shown click the jog wheel to select that character This jumps the flashing highlight to the next character position in the name If the next character does not need to be changed rotate the jog wheel and the flashing highlight will step past each character in the name Up to 12 characters can be used in a Preset name 68 Omnia 6 Use and Installation Guide Version 1 00a 69 After entering the preset name s last character rotate the jog wheel until the V Checkmark is highlighted Click the jog wheel to save the new preset If you wish to cancel the operation highlight the X instead and click the jog wheel The operation is canceled and the Preset list and menu is again displayed Note You cannot save a preset using any of the factory supplied preset names A different preset name must be used using the Save As menu option This prevents accidentally overwriting the factory presets Renaming and Deleting Presets To rename or delete a preset highlight and click the Modify choice in the Preset menu Rotate the jog wheel to highlight the Preset List and click Now highlight and Click to select the preset to be modified To rename the selected preset highlight and click on Rename The Rename Preset dialog will appear and a new name for it can be entered See Saving Presets above After entering the preset name s last character rotate the jog wheel until the V Checkmark is
156. ter Parameter adjustments include Clipper Drive Bass Clip Threshold Clipper Silk and Composite Clipper Drive Stereo Generator Encoder All digital numeric implementation theoretically perfect performance is Omnia 6 Use and Installation Guide Version 1 00a 41 42 approached Stereo separation is typically greater than 65 dB Suppression of the 38 kHz carrier is greater than 75 dB User parameters include Separation Pilot Phase Pilot Level and Composite Output Level Selectable Composite Clipper with Phase Linear Composite Low Pass Filter This feature is useful for those who wish to turbo charge their FM signal This clipper is specially designed to not interfere with the 19 kHz stereo pilot There is also a digital implementation of the Dividend Composite Filter which allows composite processing to be used without generating any harmonic content in the SCA spectrum With 3 dB of composite processing employed all content above 53 kHz is suppressed by 75 dB This precise spectral management contributes to loudness ensuring that no wasted energy is transmitted New in Omnia 6fm is a pilot notch filter to protect the pilot region from clipper artifacts The wide deep notch helps the stereo pilot region stay immaculately clean reducing multipath and keeping receiver s stereo decoders firmly locked to your signal Some radios look at the pilot region to determine when to activate their blend to mono and or high frequency
157. ter algorithm that may be enabled to comply with these regulations Peak Output Level De emphasis Right O off E e E 50uS O 75us Output Sample Rate O 32 KHz ITU BS 412 Multiplex C 44 1 KHz Power Limiter C 48 KHz E OFF O Sync to Input E Sync to External Left Channel Analog output lavel adjustable between 0 0 and 22dBu 22 to 0 dBFS HEADPHONES ITU BS 412 MPX Limiter Controls For European countries that require it the proprietary Omnia 6 Multiplex Power Limiter maintains the average multiplex power as required by regulatory agencies The algorithm will maintain the average multiplex power from 0 0dB to 9 0dB in 0 25dB steps above the original 0 0dB ITU BS 412 standard The default setting is Off Loudness Loss Warning If your country s regulatory agency does not require the use of the ITU BS 412 Multiplex Power Limiter make certain that the BS 412 Power Limiter is set to off or severe loss of loudness will result For example when the ITU BS 412 Power Limiter is switched on and set at 0 0dB there is approximately a FIVE dB loudness loss over the limiter being switched off Omnia 6 Use and Installation Guide Version 1 00a 29 30 Encode Encoding Separation Composite Six parameters are set under this Output 1 Output 2 submenu LL P e Composite Output 1 e Composite Output 2 SCA Pilot e SCA Level Level Injection e 4 gt r gt e Pilot Injection e Pilot Phase e Ster
158. the y checkmark to save your preset Highlight the X to cancel naming Note While scrolling through the character list you will see Ins Del and a blank space Ins stands for Insert and is used when you wish to add an extra character within a preset name The Del option allows you to remove a character or space from a preset name The blank space is just that It allows you to add a space within a preset name Compare Allows two different presets to be compared Note that preset changes can occur very quickly but depending on the number of internal parameters being updated the Compare process may take a second or two to fully transition from one preset to another Process This submenu is a graphical block diagram representation of the signal flow through the Omnia 6fm Each block diagram icon when highlighted and clicked opens up a parameter window that pertains to that part of the Omnia 6fm processing circuitry 24 Omnia 6 Use and Installation Guide Version 1 00a 25 Input Input Gain R Input Source This submenu has seven items Right Master Drive e E Analog l l e e e C AES EBU e Input Gain Left Right Master Drive Input Mode e Input Source Selection Pre emphasis Phase Rot HP Filter CO Stereo E off C Mono L e Invert Both Channels Option mg C Mono R E2 C Mono L R mE E Swap LR e HP Filter Selection E Invert Both pagel e Input Mode Selection e Phase Rotation Selection Gain
159. these objectives After all processing can have a direct effect on the bottom line of your station A little bit of agreement and cooperation on the goals before installation can save you a whole lot of disagreement afterwards Set Aside Some Time It can take some time a good deal of serious time to optimize the audio processing for your station We Omnia 6 Use and Installation Guide Version 1 00a 49 50 realize that in our business today time is a precious commodity But please don t try to install the Omnia 6fm in between other major projects or during the week your boss or your assistant is on vacation Make certain in advance that the staff members who helped you set your objectives will be available to consult with you when you adjust the processing parameters How much is enough time We feel that working with a system for at least a week is a good starting point We don t suggest that you drop everything for a solid week What we do recommend is that you install the Omnia 6fm during a week when you can spend a few hours per day on the project The Adjustment Procedure 1 2 50 Review your objectives Once on the air start with a degree of processing that is similar to that currently used by your station and then if desired become more aggressive A careful approach is less likely to draw hasty or even negative opinions Listen for awhile then adjust and listen for awhile again Try to avoid the
160. to the card with the Save to Card operation described next Save to Card Stores the Schedule and daypart information on the Omnia PC Card You might do this for safety or even for sharing the data with other Omnia 6 processors It saves all of the currently defined dayparts and the daypart state to the Omnia PC card These settings can be loaded later by selecting Load from Card Current State Turns the Schedule function on and off When Disabled the Scheduler runs but does not load presets When Enabled the Scheduler automatically loads presets following the daypart schedule that is set up in the current Schedule 32 Omnia 6 Use and Installation Guide Version 1 00a 33 System System Port Baud Security Lev Backlight This submenu allows you to perform 1 9600 Level 1 C 1min ho sekeeping on the Cen C 19200 C Level 2 C 5 min operating system Many items on CO 57600 i Level 3 E 15 min this menu are available only to those C 4 hour having Level 3 security access Current Time There are thirteen parameters or selections About Change Password Lock Unit Load Defaults Load Curront Date from Card Save to Card Network Security Config Current Time Current Date Port Baud Security Level and Backlight Sets rear panel serial port to 9600 N81 HEADPHONES System Submenu Port Baud This option sets the rear panel RS 232 communications port parameters between 9 600 baud 19 200 baud and 57 600 baud The facto
161. ts on your listeners Be careful Having said all of this we firmly believe that Omnia 6fm will get you closer to your ideal than any other processor or combination of processors available today It is definitely capable of generating moment to moment loudness it has the muscle It also maintains that famous Omnia clarity sought after by top programmers all over the world We encourage broadcasters to utilize the power of the Omnia6 fm to create good competitive loudness while maintaining a higher degree of quality Clarify Your Processing Objectives Whether one is seeking better overall quality or specific spectral improvements try to articulate and write down your goals Do you want a little more loudness or presence on the dial Are there certain characteristics of the sound of other stations in your market that you like want to emulate or just surpass Are there any you want to avoid When adjusting processing please give thought treal thought to how you d like your station to sound What do we mean by that Well if your desire is to add loudness and in most cases it probably will be decide on the degree of loudness that you want Is the goal to be competitively loud with respect to other stations on the dial or must you be the kingpin the moment to moment loudest thing known to God and Man This will impact how you set up the processing Engineering programming and management should all participate in the development of
162. ues for isolating problems in the field and also how to obtain help or repair service from Omnia Rear panel RS 232 port AES EBU COMPOSITE OUTPUTS 2 19 T P EXT SYNC OUT N 10 100 P z g7 COMPOSITE OUTPUTS i et olo EJ y ma UNIVERSAL POWER INPUT ENUE 100 240VAC ma usA 1 KHZ OU CA INPUT ANALOG INPUTS ANALOG OUTPUTS LEFT RIGHT LEFT RIGHT E gp D C C d CE 4 4 4 e e e To use this feature you only need a standard terminal program for DOS Windows or other operating system Configure it for a baud rate of 19 200 with no hardware handshaking and using ANSI terminal emulation At Omnia we commonly use the Hyperterminal program that comes with Microsoft Windows We ve used and tested other terminal programs such as ProComm as well Therefore you should use the program with which you are most familiar and comfortable If you re using Windows Hyperterminal please see the next page for examples of screen shots showing how we ve set up our connection here at Telos Omnia Omnia 6 Use and Installation Guide Version 1 00a 99 100 Port Setup for MS Windows Hyperterminal The following examples illustrate how to configure Windows Hyperterminal for use on the Omnia 6 RS 232 port COM Port Setup Parameters Terminal Emulation Parameters COM1 Properties 24 x Omnia6 Properties Fix ConnectTo Settings Function arrow and
163. umber if you want faster attack and release and a lower number for slower attack and release A special algorithm within the Wideband AGC Attack time circuit prevents the loss of Wideband AGC gain reduction when the Attack time control is operated at extremely slow values The Make Up Gain control sets the amount of gain to be filled in during quieter softer program passages The range is OFF to 7 This function is also program dependent and it interacts somewhat with the main 56 Omnia 6 Use and Installation Guide Version 1 00a 57 Attack and Release time constants As the attack release times are modified the system also scales the Make Up Gain time constants Use less makeup gain for processing more faithful to the source material use more makeup gain for greater loudness and density The Gate Threshold control sets the level at which gating of the AGC occurs which freezes the gain during short pauses Correct adjustment of this control helps to minimize pumping and the increase of background noise during pauses in programming The control range is OFF to 7 There are two RTP Return to Platform parameters RTP Speed and RTP Level that determine what happens to the AGC gain when the Gate Threshold is reached and audio is gated With the RTP Level set to 5 10 or 15 dB of gain reduction the gain will return to that pre defined level when gated How quickly the target gain reduction level is reached is set b
164. up a connection 1 Enter the name of the connection in the Name box It is helpful to name the connections you create according to the Omnia they connect to or even by the method of connection For instance the name box could contain entries like WXXX Omnia WYYY Omnia WXXX Omnia by Modem WYYY Omnia by Network etc 2 In the Password box enter the login password for the Omnia that you wish to make a connection to Remember that the factory default password for Omnia Remote Control is tomtom all lower case 3 If you wish to connect over a network you must check the box Connect over Ethernet When 78 Omnia 6 Use and Installation Guide Version 1 00a 79 you do this the parameters required for direct serial or dial in via modem will be grayed out Then only the TCP IP address of the Omnia that you wish to connect to must be entered Note If you are connecting via Direct Serial or Modem you should not check the Connect over Ethernet box 4 If connecting via Direct Serial or Modem then select the COM port that you wish to use on your PC This COM port should be configured in Windows for the highest baud rate that your PC will support but in any case should be set to at least 57 600 bps 5 If connecting via Direct Serial no other information is required 6 If connecting via Modem in the Phone box enter the telephone number of the modem that is connected to the Omnia at the remote site Any characters
165. urther adieu it s time for us to jam So as my buddy Scott Shannon would often say to me Frank o Let s Crank It Up Man Here s to Dial Dominance Frank Foti Greetings TABLE OF CONTENTS Safety Instructions iv Hazard Warning Labels v Notices vi Specifications vii Warranty viii QuickStart Setup Guide vix 1 INSTALLATION Omnia 6 fm Pre installation Tasks 1 PC Card and Modem Installation 1 AC Environment Considerations 1 Installation and Connections 2 Rack Mounting 3 AC Connection 3 Audio Inputs 4 Audio Outputs 4 Composite Outputs 5 19 KHz Sync Output 5 SCA Input 5 Ethernet Connection 5 RS 232 Connection 5 Interface Connection 6 Powering Up 7 2 THE OMNIA 6 USER INTERFACE User Interface Introduction 9 Using the Jog Wheel 10 Level Meters and Processing Bargraphs 11 Audio I O Level Display 11 Processing Display 11 Main Menu Display 12 Home Icon 12 X Close Window Icon 13 Remote Control via Network Indicator 14 Headphone Level Control 14 User Interface Tutorial 15 The Menu Tree part one 17 The Menu Tree part two 18 Menu Items 19 Preset 19 Process 19 User Interface Tutorial cont Input amp Output Submenus Encode Schedule System Menu Selections Preset Preset List Choose preset Modify preset Save Current preset Save Current As Compare Process Input Input Gain Left Right Master Drive Input Source Input Mode High Pass Filter Phase Rotator Pre emphasis
166. uted until the enable box is checked The preset list also has an enable box which can be used to disable the default action of changing the preset in the event the daypart is to only execute the given scripts A daypart can actually be disabled completely by not enabling either preset change start script or end script Start scripts execute at the beginning of a daypart before making a preset change if any End scripts execute at the end of the daypart after making any preset changes The script information is stored and retrieved in the same means as other daypart information Dayparts can still be selected etc from the Omnia 6fm front panel interface However dayparts with scripts cannot be modified in any way from the front panel Note Remember not to include any commands which may potentially prompt the user since a user may not be at the Omnia 6fm when the commands are executed Note The remote control application does not have to be connected in order for the scripts to execute 98 Omnia 6 Use and Installation Guide Version 1 00a 99 Chapter 7 Troubleshooting your Omnia 6 Many operational problems with the Omnia 6fm can be diagnosed using the rear panel RS 232 port and a terminal communications program Detailed information about the boot progress may be gleaned using the RS 232 port This chapter explains the various boot up and error messages that may be encountered We ll cover some basic troubleshooting techniq
167. valuate safety emissions and immunity conformance to enable CE marking 1 3 Conclusions The Omnia audio processor was found to be compliant and CE marking was applied to the product CE Mark Conformance contd Conformity is declared to the standards ENS008 1 1 EN50082 1 2 0 HF Radiated Emissions 2 1 Standards Applied The unit was laboratory evaluated according to standard EN5008 1 1 using Measurement Document EN55022 Class B 2 2 Testing The unit was tested and evaluated by Smith Electronics 2 3 Test Results The unit was found to be in conformance for both radiated and line conducted emissions 3 0 Immunity 3 1 Standards Applied 3 1 1 ESD Susceptibility Measurement Document IEC 1000 4 2 IEC 801 2 Immunity to static electricity 3 1 2 Radiated Susceptibility HF Electric Field Measurement Document IEC 1000 4 3 IEC 801 3 3 1 3 Conducted Susceptibility Power Line Measurement Documents Burst Transients IEC 1000 4 4 IEC 801 4 Surge IEC 1000 4 5 IEC 801 5 Voltage fluctuations IEC 1000 4 1 IEC 801 1 3 2 Testing 3 2 1 ESD Immunity The unit was tested and evaluated by Smith Electronics 3 2 2 Radiated Immunity RF Electric Field The unit was tested and evaluated by Smith Electronics 3 2 3 Conducted Immunity Power Line Testing to IEC801 4 was conducted by Smith Electronics Smith Electronics 8200 Snowville Rd Cleveland OH 44141 USA CE CE Conformance This device complies with the
168. ve Clipper Silk Composite Drive Return to prior screen HEADPHONES Clipper Submenu Bass Clip Threshold Limiter bands 1 amp 2 have their own clipper and time aligned low pass filter in order to reduce IM distortion in the main clipper The Bass Clip Threshold control sets the threshold of the bass clipper referred to the clip level of the main clipper A higher threshold counter clockwise will reduce the amount of bass clipped by the bass clipper but cause a corresponding increase in the amount of bass clipped by the main clipper Conversely a lower threshold clockwise will reduce the amount of bass sent to the main clipper but increase the amount of activity in the bass clipper Too much clipping by the bass clipper can soften bass punch It may also be heard as a rattling sound in the bass Fine tuning of the bass clipper drive level is also possible by adjusting the band 1 amp 2 controls in the Final Mixer as these feed the input of the bass clipper Clipper Drive Here is where the Omnia6 fm s loudness versus quality advantage is most evident The main clipper is a very powerful algorithm is highly oversampled and is fully anti aliased This clipper control s adjustment range is 6 dB in 0 1dB steps It is advisable to make minor changes primarily as the loudness fine tuner Be careful there is a lot of available power here Clipper Silk This control adjusts the texture of the main clipper when th
169. warbles a little bit This is a sign that the over processed bass energy is pushing the vocal frequencies in and out of the clipper unnecessarily Generally an increase in the Enhance Menu s Bass boost functions alone will provide more than sufficient enhancement to the low end Omnia 6 Use and Installation Guide Version 1 00a 73 74 74 This page intentionally left blank to maintain pagination Omnia 6 Use and Installation Guide Version 1 00a 75 Chapter 6 Remote Control Software The Omnia Remote Control software is a Windows Windows 95 NT 4 0 or higher software program that allows remote access to the Omnia 6fm processor adjustment using any PC running the aformentioned versions of Microsoft Windows Note that remote software for the Omnia6 fm is unique to that product and versions of Omnia Remote Control for our other audio processors will not work with Omnia6 fm The latest version of Omnia6 fm Remote Control Software is always available free of charge by pointing your web browser to the Support page of our web site www omniaaudio com The Omnia 6 Remote Control application looks very similar to the actual front panel of the Omnia 6 Before it connects to the Omnia the words OFF LINE will be displayed where the Preset Name and System Time will be displayed once the remote connection is made All metering activity also be at idle File Options Help L INPUT R dBFS oureur w234 5 12 9 see o a
170. who reserves the right to make improvements or changes to the products described herein which may affect the product specifications and to revise this manual as required without notice Repair Procedures You must contact Omnia for a Return Authorization number before returning any products Packages without proper authorization may be refused Please write the RA number on the shipping label side of the returned package Be sure to adequately insure your shipment Customers in North America can contact Omnia customer support at 1 216 241 7225 In Europe contact Omnia Europe at 49 8161 42467 Germany All other customers should contact their local Omnia dealer to verify the problem and then contact Omnia to arrange for repair Refer to the section entitled Obtaining Service for more details Caution The installation and servicing instructions presented in this manual are for use by qualified installation and service personnel only To avoid electric shock do not perform any servicing other that than contained in the operating instructions unless you are qualified to do so Refer all servicing to qualified personnel J Warning To reduce the risk of electrical shock do not expose this product to rain or moisture Omnia 6fm Specifications As of January 2002 Version 6 01 Software Note All measurements made with the supplied FactTest2 preset which is available in the Preset Submenu Due to the nature of multi band gain contr
171. y during live speech Functionally this is similar to how the Gate function works in the preceding AGCs The other control is Limit Threshold This control sets the threshold where audio peak limiting begins Care is needed when adjusting this control because raising the threshold counter clockwise causes less limiting to occur and the resulting uncontrolled peak energy will go to the clipper instead Thus with this control you can artistically trade off the dynamic limiting against brick wall clipping as each has its own sound As the limiter threshold is lowered by turning the Limit Thresh clockwise the peak output level of the limiter is reduced The signal in that band won t hit the clipper as hard and you ll notice more action on the limiter bargraph for that band In fact instead of reducing the output of one of the audio bands in the Final Mixer section you could instead dynamically reduce the level in that band which also increases density in that band by lowering the limiter threshold When adjustments are made to limiter thresholds start by making adjustments in 0 5dB steps Reducing the threshold too much can cause the system to create an effect that sucks out the frequencies in that band Conversely the opposite raising the threshold will create an exaggerated effect by over enhancing certain frequency ranges as well as causing increased distortion since excessive levels from that band will reach the following cli
172. y excessive clipping of audio in that band We suggest that changes implemented here be limited to no more than about 1 0 dB Naturally the decrease in mix level can be done to any desired amount Thunder Bass Omnia 6 has the power to shake the walls with low end If your source material has it Omnia 6 will put it on the air and with muscle Making changes to this characteristic is done using the following parameters and for maximum effectiveness in the order listed 1 Inthe Enhance Menu increase the amount of Deep Bass or Phat Bass boost 2 Increase the drive to the LF Limiters with the appropriate controls in the Limiter XO screen 3 Speed up the Release times of the LF Limiter sections When it comes to processing moderation is the key If all of the above steps are utilized in the pursuit of more bass then severe low frequency over enhancement can occur Excessive bass boost can produce the illusion that the presence and high frequencies have been lost They are still there but are being acoustically masked by the lower frequencies Another concern is the creation of bass induced intermodulation distortion in the clipper This artifact 72 Omnia 6 Use and Installation Guide Version 1 00a 73 might be noticed on midrange presence frequencies whenever a sustained bass note is present An example of this would be a strong bass signal underneath a sustained vocal passage The vocal passage will begin to sound as if it
173. y of equipment The output levels and other stereo generator settings are set through software parameters in the Encode menu An internal jumper sets the output impedance to either 10 ohms the factory setting or 75 ohms The default setting is appropriate for the vast majority of exciter connections However in the event a higher source impedance is required a jumper can be moved one for each composite output on the motherboard to change the source impedance to 75 ohms For reference J10 is for Composite 1 and J13 is for Composite 2 19 kHz Sync Output BNC This TTL level 19 kHz square wave output can be used as the reference signal for any SCA generator that operates at 57 kHz or other multiple of the 19 kHz pilot frequency This Sync output is phase and frequency locked to the stereo pilot When this signal is used to synchronize an external SCA or RDS generator this locking assures that no difference frequencies exist which may cause intermodulation components between the pilot and the SCA signal SCA Input BNC Any SCA signal above 53 kHz can be added to the composite outputs of the Omnia 6fm by connecting the SCA signal to the SCA INPUT connector The SCA signal is mixed in the analog domain directly into both composite outputs A high pass filter on the SCA input provides SCA to main channel crosstalk protection The SCA deviation level is controlled through the SCA Level software parameter in the Encode Menu Ethernet Connection
174. y the remaining RTP Speed settings Slow Medium or Fast Ifno RTP gain reduction is desired use the RTP Speed setting Freeze The Freeze setting means that when the audio falls below the gating threshold and the audio is gated the gain reduction freezes at whatever gain reduction value there was at the instant the audio dropped below the gating threshold This gain is held until the audio level again reaches and exceeds the gating threshold Note that due to the way in which the RTP circuit works the RTP Speed settings are somewhat affected by the setting of the Attack time control If you wish to bypass the Wideband AGC stage you may do so by selecting the Bypass option When the AGC is bypassed the static gain remains the same as if 12dB of gain reduction was in effect and the Master Drive control was set at 0 0dB Omnia 6 Use and Installation Guide Version 1 00a 57 58 AGC Crossover XO The audio signal from the WB AGC section is divided into five user adjustable frequency bands within the AGC XO section The crossover frequency points for the five bands are controlled by the four controls along the bottom of the window The various crossover choices are Low Freq to Mid Low LF ML 100Hz 120Hz 150Hz 190Hz 250Hz Mid Low to Mid High ML MH 400Hz 500Hz 700Hz 1Khz 1 5Khz Mid High to High Freq MH HF 2 5Khz 2 8Khz 3 2Khz 3 7Khz 4 4Khz High Freq to Super High HF SH 5 5Khz 6Khz 7Khz 8 5Khz 10Kh
175. z Note The factory default crossover points for all presets are 150Hz 700Hz 3 2kHz and 7kHz AGC Crossover Mid Low Mid High High Super High e e LF ML Freq ML MH Freq MHIHF Freq HF SH Freq 2 2 2 e Low Frequency Drive higher numbers are more drive HEADPHONES AGC Crossover Submenu The drive level to each AGC band can be set by the controls at the top of the window There is 6 dB of gain adjustment available for each band Just as in properly setting a program equalizer the best sound consistent with preserving signal headroom is usually obtained by reducing the gain of the louder band s rather than increasing the gain of the lower level band s For example if the program source material has widely varying high frequency levels a common action is to just turn up the output mixer controls However consistency can be improved much more effectively by adding a bit more drive level to the upper AGC bands and then reducing their output levels slightly in the post AGC Mixer This type of adjustment strategy will result in better long term high frequency consistency and a more pleasing air sound 58 Omnia 6 Use and Installation Guide Version 1 00a 59 Multiband AGC Windows Each of the multiband AGC s has its own set of controls similar to those in the Wideband AGC section The four controls in these windows Attack Release Make Up Gain and Gate Threshold and the two parameter selections RTP Speed an

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