USER`S MANUAL
Contents
1. Wdd LAdLNO LAdNI EI 31 Wdd 40199 05 anduy Jaw Haas didd s andu paiia rga sav p esav eq 1 ZHAI bb euzu oukg 3x3 22 pe uepeq SLMdNI SOTVNV i NI caa TYPICAL SETUPS Connecting and Setting up the DB2 To Transmission or Media Digital or Analog Out B Digital or Analog In Digital or Analog Out TC Icon Control Interface on PC m RS 232 or USB Cloning DB2 s using a PCMCIA card Once a single DB2 has been set up for the desired applications other DB2 s in the house can be easily cloned using a standard PCMCIA card In other words it is NOT necessary to hook up every single DB2 to a computer to set these up Insert an unprotected PCMCIA card into the source DB2 s card slot Goto the TC Icon System Card page Decide whether you wish to exclude the System Preset that hold overall Clock settings Analog Trim levels Dither Status Bit settings and GPI settings To exclude the System Preset activate the Exclude System Preset button Then click CREATE CLONE CARD 12 In use no TC Icon Editor PC connection necessary Connect your audio source material to DB2 Inputs Options are balanced Analog digital AES3 id or S PDIF Connect Outputs to relevant media Standard Setup2. 22 Yellow LED Threshold 22 System Net Page ICON Views 23 Engine I O Page Input amp Clock 24 Levels scene ee e RT Sok B 24 TC Electronic Sindalsvej 34 DK 8240 Risskov tcdk tcelectronic com English Version Rev 2 SW V 1 00 3 Prod No 606142011 INTRODUCTION Introducing DB2 Consistency in loudness levels plus sync of audio to picture These are the two most important issues you need to get right in today s broadcast They are also two of the reasons why TC Elec tronic s DB range of high definition audio processors has set the standard amongst broadcasters the world over DB2 puts all of the tools necessary for trouble free broadcasting into one rack mountable unit and adds to a scalable family of processors covering every application from regional stations to network centers from podcast to HDTV from AC3 to linear and from mono to 5 1 DB2 is the new smaller brother of DB4 and DB8 It is the perfect choice for dual mono or stereo operation in MPEG AAC AC3 or linear audio transmission and linking Performance is similar to its bigger siblings and is also preset compatible across the range Like the rest of the DB family DB2 offers high quality loudness correction without metadata dependence and is compatible with the latest ITU and EBU audio standards DTV Step by Step With the launch of DB2 TC Electronic also introduces a new commitment to buyers o
3. A e n ms 3IUO1 2 tc electronic Pie EDITED GAIN DB2 LOUDNESS CONSISTENCY PROCESSOR vv 30 24 20 18 16 14 12 OUTPUT vv 48 B0 40 30 24 20 1B 16 14 12 R LO OPTIMIZE HI USER S MANUAL IMPORTANT SAFETY INSTRUCTIONS The lightning flash with an arrowhead A symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated dangerous voltage within the product s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons Read these instructions Keep these instructions Heed all warnings Follow all instructions Do not use this apparatus near water Clean only with dry cloth Do not block any ventilation openings Install in accordance with the manufacturer s instruc tions 8 Do not install near heat sources such as radiators heat registers stoves or other apparatus including amplifiers that produce heat 9 Do not defeat the safety purpose of the polarized or grounding type plug A polarized plug has two blades with one wider than the other A grounding type plug has two blades and a third grounding prong The wide blade or the third prong are provided for your safety If the provided plug does not fit into your outlet consult an electrician for replacement of the obsolete outlet 10 Protect the power cord from being walked on or pinched particularly
4. Connect a free RS232 serial COM port on the computer to the RS232 connection on the rear of DB2 Use the supplied RS232 to USB connector when connecting to USB Note max verified USB cable length is 10 m Start the TC Icon PC Editor and select appro priate COM port Read TC Icon installation procedure section Make audio connections if these are necessary for programming ZA ALL DATA previously stored on the card will be destroyed when formatting the card If the card is write protected no data can be written on the card The protect unprotect switch is located at the edge of the card Remove the card and go to the target DB2 unit Power off the target DB2 unit Insert the card and power up using the front panel POWER key while holding the OK key pressed Press UTILITY until the display shows C CLONE Now press the OK key All settings with or without System Preset depending on your previous selection are now copied to the target DB2 INSTALLATION oFTHETC ICON SOFTWARE EDITOR Requirements for running the TC Icon Software Editor APC with a Pentium or compatible processor with one of the following operating systems Windows 95 Windows 98 Windows NT Windows 2000 Windows ME Windows XP and Windows Vista The CD ROM The CD ROM delivered with the TC Icon Software Editor contains Afolder called TC Icon Software Editor Update version Use the contents of thi
5. Select To File if you wish to backup the selected bank to your hard disk The TC Icon saves the bank files in a EXC specific location This location varies EPN slightly between different operating systems As an example Windows 2000 saves backup files in Application Data TC Electronic TC Icon DB2 Presets xxxxx Do not move the files from this location or the TC Icon will not be able to display the presets on the From File page NOTE 17 CLONING DB2 S Cloning DB2s Cloning DB2 s using a PCMCIA card Once a single DB2 has been set up for the desired applications other DB2 s in the house can be easily cloned using a standard PCMCIA card In other words it is NOT necessary to hook up every single DB2 to a computer to set these up Insert an unprotected PCMCIA card into the source DB2 s card slot Go to the TC Icon System Card page Decide whether you wish to exclude the System Preset that hold overall Clock settings Analog Trim levels Dither Status Bit settings and GPI settings To exclude the System Preset activate the Exclude System Preset button Then click CREATE CLONE CARD EX ALL DATA previously stored on the card EPN will be destroyed when formatting the card If the card is write protected no data can be written on the card The protect unprotect switch is located at the edge of the card Remove the card and go to the target DB2 unit Power off the target DB2 uni
6. Test 6 Battery Test The battery voltage is tested If it is within limits the symbol is shown otherwise the symbol is shown Test 7 System Test The ASIC DSP DSP RAM and EEPROM are tested while the digit 7 is flashing The symbol will indicate that the test results are positive The symbol will indicate that there are problems Test 8 Ex RAM Test The Ex RAM memory board is tested for one minute while the digit 8 is flashing The symbol will indicate that the test results are positive The symbol will indicate that there are problems Service Note In case of the unlikely event that the unit needs to be sent in for service please pack it in the original box AND an outer box before sending it
7. EN 55103 1 EN 55103 2 With reference to regulations in following directives 2006 95 EEC 89 336 EEC May 2009 Anders Faurskov Chief Executive Officer S 2 TABLE OF CONTENTS INTRODUCTION ALGORITHM Important Safety Instructions amp Main Page 25 Certificate of conformity a b Loudness Page 27 Table of Contents 3 Page rb Re 29 Introduction 5 5 Page 32 Quick Start Guide 7 Limiter nig iced xeu 34 Front Panel Overview 8 Rear Panel Overview 10 APPENDIX Signal Flow Diagram 11 Typical DB2 Setups 12 Reset Menu amp Software Load 35 TC Icon Editor Installation 13 Troubleshooting 36 Technical Specifications 37 BASIC OPERATION DB2 Presets 38 S6lF test de des 40 The TC Icon PC Editor Introduction and Basic Operation of the TC Icon Editor 14 Renaming Presets 15 Preset Structure and Handling Recall Store Delete 16 Cloning DB2s 18 System I O Page Clock Preferences 19 Analog Levels 19 Digital Output 19 GPL E 19 Calibration 20 Front Panel Configuration Bypass Configuration
8. Engine All algorithm parameters QUICK START GUIDE Cloning DB2 s using a PCMCIA card Once a single DB2 has been set up for the desired applications other DB2 s in the house can be easily cloned using a standard PCMCIA card In other words it is NOT necessary to hook up every single DB2 to a computer to set these up Insert an unprotected PCMCIA card into the source DB2 s card slot Goto the TC Icon System Card page Decide whether you wish to exclude the System Preset that hold overall Clock settings Analog Trim levels Dither Status Bit settings and GPI settings To exclude the System Preset activate the Exclude System Preset button Then click CREATE CLONE CARD EX ALL DATA previously stored on the card EFA will be destroyed when formatting the card If the card is write protected no data can be written on the card The protect unprotect switch is located at the edge of the card Remove the card and go to the target DB2 unit Power off the target DB2 unit nsert the card and power up using the front panel POWER key while holding the OK key pressed Press UTILITY until the display shows C CLONE Now press the OK key All settings with or without System Preset depending on your previous selection are now copied to the target DB2 FRONT PANEL OVERVIEW o tc electronic POWER On Off Switches power On Off To completely disconnect from mains the Rear
9. Ext Word Clock Sets the processing clock frequency to be used when Digital SRC is selected on the Engine I O page Analog Trim Input Trim L amp Input Trim R Range 1 00 to 1 00 dB in 0 05 dB increments Level trim for analog inputs SYSTEM I O PAGE Output Trim L amp Output Trim R Range 1 00 to 1 00 dB in 0 05 dB increments Level trim for analog outputs Digital Output Dither Range 8 12 14 16 18 20 22 24 off DB2 processes audio signals internally at 48 bit resolution Dither must be set to match down stream devices Status Bits Select whether the DB2 should send out AES EBU or S PDIF status bit information GPI The GPI input reads the analog DC level fed to this port and may be assigned to a variety of functions It may set the output level add or change the on line delay enter and exit bypass and make DB2 switch between up to 8 presets GPI Assign Disabled The device connected to the GPI port is disre garded Fader Select this setting to enable GPI control of DB2 s output gain The DC level on the tip of the connector is read and used to adjust the output gain Output Fader on the Engine Limit page Inside DB2 a 10 kOhm resistor is connected between 5 V and the tip of the GPI jack Therefore a passive external fader or potentiometer can be used to control the output gain Use the Calibration function to optimize the control range for a given pot Bypass Select this
10. 02 oct to 1 oct Range for the Parametric filter Lo BW 0 1 oct to 4 oct Mid BW 0 1 oct to 4 oct Hi BW 0 1 oct to 4 oct Range for the Shelving filter Lo BW 3 dB oct to 12 dB oct Hi BW 3 dB oct to 12 dB oct Range for the Cut filter Lo BW Bessel or Butterworth Hi BW Bessel or Butterworth Bandwidth Q Key Values BW Q 0 5 _ 2 87 0 7 _ 2 04 1 0 _ 1 41 EQ PAGE 3l 5 BAND PAGE Introduction Multi band processing can be used for evening out spectral differences between programs optimizing levels and or assisting the loudness correction when changes in loudness occur suddenly Make your settings on the 5 band pages according to the task at hand The 5 band processor in DB2 may be used simultaneously with all other processing modules The section may be switched to four three or two bands or to DXP mode which lifts low level signals instead of performing regular multi band compression Pressing Threshold Range Ratio Attack and Release buttons will immediately assign Lo Mid Hi and All values for these parameters to Faders 1 to 6 The All parameter offers a relative adjustment of all bands Its value reflects that of the Mid band Threshold Range 25 dB to 20 dB Use this parameter to set the threshold for each frequency band in the compressor Values are relative to the Reference Level parameter on the Main page Gain Range 0 0 to 18 dB in 0 1 dB steps Use this p
11. XP installed Installation of TC Icon Editor Software Enter the CD open it run Setup exe and follow the instructions shown onscreen Connecting DB2 Connect the RS232 In port of the DB2 to a COM port on your PC If there are several COM ports note to which port you have connected the DB2 The supplied RS232 to USB connector can be used to connect the DB2 to a computer s USB port However note that where RS232 can carry signal over cable lengths of up to 200 meters USB cable lengths should not exceed 10 meters Programming the DB2 does not necessarily require audio to be connected However if audio connections are needed make audio connections according to the setup illustra tions in this manual Getting started with the TC Icon Editor Power up the DB2 and start the TC Icon software on your computer Goto the Setup Devices Port page to select which COM 1 to 4 port you have connected the DB2 per default the Editor will look at COM ports 1 to 4 automatically Goto the Setup Devices Select page Click DETECT and assign the detected DB2 to one of the eight device locations in the right side of the display To do so simply click any of the eight buttons Click the ICON button in the upper left corner to go the pages from where all local DB2 parameters are controlled Library Page handles presets System Page handles Clock Level trims Lock functions and the variable yellow LED Threshold
12. analog transmission a more con servative setting is suggested e g 1 0 dB or lower This parameter is only used when Emphasis Limiting is set to another value than Off Reset Menu amp Software Load To enter the following functions hold the UTILITY key while powering up the unit Once you see the menu you can navigate it as follows Press the UTILITY key to scroll through the menu Press the OK key to confirm enter L Load Indicates Load mode and is used when loading application software Press OK to load the information present on the currently inserted PCMCIA card When no card or a card with invalid software is inserted a dash will flash for three seconds in the display R Reset With Reset mode selected press OK once to activate Reset mode The R in the display will then begin to flash To abort cancel the operation press the UTILITY key To confirm the reset operation press OK a second time During the reset procedure a is displayed A Boot Software Version Press OK to see the version number of the currently loaded boot software For service purposes only V Operating Software Number Press OK to see the version number of the currently loaded DB2 application software N Serial Number Press OK to see the serial number for this unit In most instances this should be easier than having to go to the back of the unit
13. and true peak limit for any codec Standard US broadcast level as well as new ATSC recommendations In AC3 suitable for static dialnorm at 23 Universal low latency pronounced loudness correction and true peak limit for any codec Standard US broadcast level as well as new ATSC recommendations In AC3 suitable for static dialnorm at 23 Universal low latency loudness reduction and true peak limit for linear audio and any codec Standard EBU broadcast level In AC3 suitable for static dialnorm at 21 Low latency loudness reduction and true peak limit for linear audio and any codec Preset with extra loudness reduction for loud promos and commercials Standard EBU broadcast level In AC3 suitable for static dialnorm at 21 Universal low latency mild loudness correction and true peak limit for any codec Standard EBU broadcast level In AC3 suitable for static dialnorm at 21 Universal low latency pronounced loudness correction and true peak limit for any codec Standard EBU broadcast level In AC3 suitable for static dialnorm at 21 39 SELF TEST Accessing the Self Test Routines Press and hold the OK key while powering up the DB2 to access the self test Press UTILITY to select T Press OK to enter Press UTILITY to select test number and press OK to start the test Test 0 LED test Turns all LEDs on Test 1 Analog In Out Test Connect a balanced cable between ONE analog Ou
14. is connected to the GPI input the input voltage therefore is 5 V Resistors can be used to pull down the voltage as suggested in Fig 1 In Table 1 voltages outside the limits mentioned are to be considered invalid No action is taken if invalid measurements are made GPI recall action resumes when a stable valid measurement again is detected Preset No Target Vs Min typ V Target V 1 2 3 4 5 6 7 8 Rather than absolute voltage measurements the windows are defined as a fraction of the ER supply voltage Vs This voltage can be measured with a high impedance DMM on the Tip terminal when no pull down resistors are applied The table shows values as a fraction of Vs and as a guideline typical voltages when Vs 5 000 V If the supply voltage is e g 5 015 V the table should be corrected by multiplying these values by 5 015 5 21 FRONT PANEL CONFIGURATION Bypass Configuration Press the round BYPASS button to activate Normal No Delay in bypass and Dithering is active Relay Bit transparent digital and analog Bypass Relay No Codec Delay No delay in bypass Bypass bit transparency Codec Delay Delay active in Bypass Bypass bit transparency Yellow LED Threshold Analog In Analog Out amp Out Threshold Range 0 to 20 dB Use this parameter to set the response threshold for the two yellow digits on the In Out meters 22 SYSTEM NET PAGE amp ICON VIEWS Fade
15. manually without the risk of overloads The Level Trim can be used for permanent offsets or live loudness adjustments f 5 Band section I Limit Threshold Loudness Ratio ENS Loudness MAX Gain 4128 Output Level 18dB Compression l Rotio Compression Threshold 30dB Target Level 36dB 4208 24 44848 N Freeze Level 54dB 6008 Input Level 6048 5448 48dB 42dB 36dB 30dB 24dB 18dB 12dB 6dB 28 Ratio Range 1 1 25 to 1 6 Ratio is the steering factor used when the Loudness Control applies boost or attenuation to reach the Target Level The higher you set the Ratio parameter the more rigid the signal is steered towards the Target Level Average Rate Avg Rate Time constants in the Loudness Control section are changed dynamically along with the input signal based on computations by multi level detectors When the Output level is close to the Target Level gain changes are relatively slow The Average Rate offsets all time constants to be faster or slower Values below 1 5 dB sec produce slow gain rides However for promos and commercials higher rates are needed At rates above 4 dB sec changes become less symmetrical i e DB2 will turn the level down quicker than turning it up This feature allows for rapid adaption without destroying the audio or adding gain pumping Slow Window Range 0 to 20 dB The Slo
16. meter color change For both Input Output meters Below 20 dB the meter LEDs are green From 20 dB to 0 dB LED color can be green or yellow The value for this color change is set via the TC Icon Editor on the System Front page FRONT PANEL OVERVIEW LOUDNESS CONSISTENCY PROCESSOR DB2 UTILITY amp OK Keys The UTILITY and OK keys are used for software version check and access to Reset and Software Load menus see appendix for details keys do disturb operation and x be used while the unit is on air REAR PANEL Power Input Balanced Balanced BNC AES3 id S PDIF RS 232 GPI IN 100 to 240V Analog Analog Sync Inpul Input 9 pin Sub D Inputs Outputs Output Output Power Switch XLR XLR RS232 For connecting to a PC RS232 port use a standard 9 pin Sub D cable Supplied For connecting to a PC USB port use the supplied RS232 to USB connector Note max recommended USB cable length 10 m while the RS232 part of the cable may be much longer GPI In Use standard stereo jack not supplied SYNC Use standard shielded 75 Ohm Coax cable with BNC connectors not supplied XLR to XLR XLR to Jack Stereo 10 SIGNAL FLOW DIAGRAM qas andano pesay andano mig ueg ano jig pe usge dWo SLAdLNO aNvgs HLAIM 25v Sua i4 Av 13a
17. of the Brickwall Limiter is set separately on the Limiter page Some broadcasters like the sound of operating left and right limiting without stereo coupling because they feel that it maximizes loudness and widens the stereo image On dual mono sources of course you should always choose un linked Limiter operation MAIN PAGE Configuration Stereo In this mode the Loudness EQ and Multiband sections operate in tandem Whatever gain change is applied to one channel is applied to the other Also many parameters have mutual left and right controls Dual Mono In this mode the Loudness EQ and Multiband sections treat the two Input signals completely independently Stereo Wide In this mode the apparent width and image of stereo signal can be altered simultaneously with controlling loudness and peak level The left and right signal is internally de composed into an M Mono and S Stereo component and reverted to left and right signals before peak limiting on the Output Sum Mono Left and right channels are summed after Delay Filters and AGC Left Mono Only the left channel is being processed Right Mono Only the right channel is being processed LOUDNESS PAGE Target Level Range 10 dB to 10 dB This is the level the Loudness controller will aim at on its Output Target Level is relative to Reference Level on the Main Page Example When using the BS 1770 measure with Refe
18. once it has been placed inside a rack S Start Select this function to reboot the DB2 for normal use When you a have performed a Reset procedure and the unit reboots all presets are reconfigured The reconfiguration process takes approximately 15 seconds Please be patient APPENDIX 35 TROUBLESHOOTING Port Conflict Another active application may conflict with the serial ports you have selected on the Setup Devices Ports page If this is the case the following screen will appear There are two options to resolve this problem 1 Connect the DB2 to another physical COM port and select this COM port on the COM port page 2 Close the conflicting application 36 APPENDIX TECHNICAL SPECIFICATIONS Digital Inputs and Outputs Connectors Formats Output Dither Word Clock Input Sample Rates Processing Delay Additional Delay Frequency Response DIO Processing Resolution Sample Rate Conversion Type Dynamic Range THD N Input Rate Range Analog Inputs Connectors Impedance Max Input Level Min Input Level for 0 dBFS A to D Conversion A to D Delay Dynamic Range THD Frequency Response Crosstalk Analog Outputs Connectors By pass Impedance Max Output Level Full Scale Output Range D to A Conversion D to A Delay Dynamic Range THD Frequency Response Crosstalk EMC Complies With Safety Certified To Environment Operating Temperature Storage Temp
19. panel POWER switch must be used PCMCIA Slot For software updates and preset backups ERROR LED Indicates various error states e g signal overflow digital input or sync lost 48 44 1 32 kHz LEDs Indicates output sample rate Note that input sample rate may be different when DB2 s sample rate converter is engaged A blinking sample rate LED indicates a sync error e g that a digital input is unavailable ANALOG IN DIGITAL IN Indicates currently selected input type In case digital input is lost the Analog In LED blinks to show that the unit has Switched to analog input for redundancy purposes DUAL MONO LED Indicates that the DB2 is operating in Dual mono mode EDITED LED Indicates that the currently recalled preset has been edited but not stored 12 GAIN GAIN Meter Indicates the current Loudness correction gain as per ITU R BS 1770 or TC GRID OPTIMIZE Meters Indicates gain reduction in the 5 band processor When Utility is activated this section is used for alpha numerical display LIMIT Meter Indicates gain reduction of the output true peak limiter LO OPTIMIZE HI OUTPUT vv L 68 60 40 30 24 20 18 16 14 12 10 8 8 4 R INPUT OUTPUT Meters The Input meters indicate the level of the Input signal after the In Gain control set via the TC Icon control interface The Output meters indicate the current Output level Threshold value for
20. the CURRENT ENGINE NAME button on the Store page A keyboard display will open Please note that entering the name and tena pressing ENTER does not permanently store the new name To actually store a preset you have to click the STORE button on the Store page Fader Assign The Fader Assign button allows you to assign any algorithm parameter to any of the six Faders This means that you are not limited to operating the parameters visible on the current page You can have e g the In Gain parameter from the Main page assigned to Fader 1 the Loudness Level Trim from the Loudness page assigned to Fader 2 etc To assign a parameter Click the Fader Assign button Select the Fader you wish to link a parameter to by clicking the field just above the fader Click the parameter you wish to link to the selected fader 15 PRESET STRUCTURE RECALL STORE DELETE Library Pages On these pages all preset operations are handled To recall a preset Simply select the desired preset by clicking on the preset name in the list Then click the RECALL button Preset List Recall button hey kaa 2 System Presets There are three System User memory locations and one Factory Default None of them is affected by regular Recall operations System User memory 1 is always recalled when powering up the unit System presets include Analog Trim Meters Dither Remote and Bypass settings System p
21. 4 0 or higher More pronounced 5 band processing may also be added by bringing down the All Threshold parameter on the 5 band page With a lower threshold you may need to prevent the level from dropping by adding Gain to some or all bands of the multiband processor Finally consider activating the Lo Cut and Hi Cut filters on the Main page When you have finished editing parameters be sure to store the revised settings in one of the User Banks U1 to U8 on the Library page 38 1 DB2 PRESETS ATSC Program Limit ATSC Promo Limit ATSC Loudness Correct 33 ATSC Loudness Correct 50 EBU Program Limit EBU Promo Limit EBU Loudness Correct 33 EBU Loudness Correct 50 Neg only Neg only Neg amp Pos Neg amp Pos Neg amp Pos Neg amp Pos Neg amp Pos Neg amp Pos New presets reflecting changing global broadcast standards will be released from time to time Check www tcbroadcast com for updates Universal low latency loudness reduction and true peak limit for linear audio and any codec Standard US broadcast level as well as new ATSC recommendations In AC3 suitable for static dialnorm at 23 Low latency loudness reduction and true peak limit for linear audio and any codec Preset with extra loudness reduction for loud promos and commercials Standard US broadcast level as well as new ATSC recommendations In AC3 suitable for static dialnorm at 23 Universal low latency mild loudness correction
22. F to 167 F 30 C to 70 C Max 90 non condensing PC Card 68 pin type 1 cards PCMCIA 2 0 JEIDA 4 0 Supports up to 2 MB SRAM 9 Pin SUB D RS232 to USB cable included in box 1 4 inch phone jack 19 x 1 75 x 8 2 483 x 44 x 208 mm 5 2 Ib 2 35 kg Anodized aluminum face Plated and painted steel chassis development gt 10 years 100 to 240 VAC 50 to 60 Hz auto select 20W 1 year 20 Due to continuous development these specifications are subject to change without notice 37 DB2 PRESETS The following Factory Presets are available with software version 1 0 All presets feature ultra low latency loudness correction and true peak limiting Factory presets assume that the AES3 id input is used If you require analog or SPDIF input recall a preset go to the Engine I O page and select the appropriate input For analog I O remember to adjust the Level at 0 dBFS parameter to comply with your requirements If DB2 is processing for a wide dynamic range platform such as DTV or internal station linking the Limit Threshold on the Limit page may be raised to 3 dBFS or even higher For AC3 transmission however the Limit Threshold should not go much above 6 dBFS to avoid distortion in consumer devices If DB2 is processing for a low dynamic range platform such as IPTV or MobileTV the Limit Threshold on the Limit page may be lowered 2 3 dB and the Ratio on the Loudness page raised to 1
23. arameter to apply make up gain to each frequency band The gain is reflected on the 5 band meter on the Icon remote thereby giving an idea of the frequency response of DB2 when levels are below the threshold of compression 32 Ratio Range Off to Infinity Use this parameter to set the ratio for each frequency band in the compressor Attack Range 0 3 to 250 ms Use this parameter to set the attack time for each band of the compressor Release Range 20 ms to 7 sec Use this parameter to set the time it takes for each compressor band to recover to unity gain Bypass Comp Click to this button to bypass the 5 band com pressor Xovers Click this button to access the four cross over points between the five bands The parameters are automatically assigned to faders 1 to 4 Parameter Range Xover 1 Off to 1 6 kHz Xover 2 Off to 4 kHz Xover 3 100 Hz to Off Xover 4 250 Hz to Off Defeat Thresh Range 3 to 30 dB This is a unique control which defeats gain from the multiband compressor below a certain threshold No matter what spectral shaping is applied from the multiband system Below the Defeat Threshold the frequency response is flat and gain is unity Defeat Threshold is relative to Compressor Threshold which is relative to Reference Level Defeat Ratio Range Off to Infinity Controls how close to the Defeat Threshold the make up gain of the compressor is counteract ed At high ratios the sig
24. arameters are described later in this manual E ke c Engine Presets Engine presets hold all parameters and settings from the Engine page User Presets The User banks U1 to U8 can hold up to eight presets each Factory Presets DB2 comes loaded from the factory with a col lection of general purpose factory presets organized in banks F1 to F8 Store Delete To store a preset Select the Store page by clicking the STORE side tab Select a preset location Click STORE l BASICS PRESET HANDLING 3 F 4 mor To delete a preset Select the Delete page by clicking the DELETE side tab Select the preset you wish to delete Click DELETE ME c When Presets are stored or deleted parame ters on the In Out page and Engine Layers are always affected System parameters on the other hand are unaffected by any other commands than a specific System Store or System Delete Bank Handling Via the Library Bank page you can Backup and retrieve the System User bank Backup and retrieve any user bank U1 to U8 to any user bank location U1 to U8 or to your hard disk From Bank On this page you select which bank on the DB2 you wish to copy from From File If you have already stored banks on your computer this is where the files will appear To Bank Select which DB2 bank you wish to copy the selected bank to To File
25. at plugs convenience receptacles and the point where they exit from the apparatus 11 Only use attachments accessories specified by the manufacturer Use only with the cart stand tripod bracket or table specified by the manufacturer or sold with the apparatus When a cart is used use caution when moving the cart apparatus com bination to avoid injury from tip over 13 Unplug this apparatus during lightning storms or when unused for long periods of time 14 Refer all servicing to qualified service personnel Servicing is required when the apparatus has been damaged in any way such as power supply cord or plug is damaged liquid has been spilled or objects have fallen into the apparatus the apparatus has been exposed to rain or moisture does not operate normally or has been dropped 003 12 The exclamation point within equilat A eral triangle is intended to alert the user to the presence of important operating and maintenance servicing instructions in the literature accompanying the product Warning Toreduce the risk of fire or electrical shock do not expose this equipment to dripping or splashing and ensure that no objects filled with liquids such as vases are placed on the equipment This apparatus must be earthed Use a three wire grounding type line cord like the one supplied with the product Be advised that different operating voltages require the use of different
26. convenient organizer for the entire system Go to the Select page top tab and you will See a screen similar to the one below The number of connected units and their locations may vary depending on your specific setup Click the large DB2 button TC Icon now retrieves data from the DB2 When ready you will see the Main operating display Basic Operation The Icon Link button in the upper left corner allows you to navigate between two main pages modes Fig 1 Setup Select Page Via the overall Select amp Setup pages you can access overall settings and make choices such as Selecting which of the connected units you want to operate Enabling devices for networking Making TC Icon settings such as display and fader appearance On the Select page shown above Fig 1 all connected units will appear Click on one of the units shown on that page Auto Page This page is not required for operating a DB2 Fig 2 Operating pages Click the Icon Link button in the upper left corner to select these pages These pages are relevant to one specific unit THETC ICON EDITOR Library pages handle operations such as recalling storing and deleting presets System pages handle overall clock settings I O settings and network settings Engine pages allow you to control all algorithm specific processing parameters Renaming Presets All user presets can easily be renamed Click on
27. dicated The ring terminal of the 74 jack is not used If GPI Preset mode is selected and no device is connected to the GPI input the DB2 will always recall preset 1 at power up 20 Calibrate Use this function to calibrate DB2 to a connected GPI controller e g master control relays or a potentiometer such as the TC Master Fader To calibrate the GPI controller Connect the GPI Controller to the GPI Input jack and click CALIBRATE Set the GPI controller to its minimum position and click Set Lo Threshold Set the GPI controller to its maximum position and click Set Hi Threshold Press OK to complete the calibration procedure GPI Current voltage Indicates the current voltage on the GPI Input With no GPI controller connected the voltage is 1000 mV Therefore it is worth noticing that the maximum indicated value on e g Master Fader is a lower voltage value than the minimum value GPI of preset 1 on Preset2 SFL Input off preset Select 1 of 2 on 2 on preset4 off preset5 on preset off preset 7 on preset8 RL2 RL1 off off preset 1 1 off on preset2 GPI Input RL2 on off preset 3 ring on on 4 Select 1 of 8 R2 22k sleeve RL1 GPI Input Select 1 of 4 R1 12k I sleeve GPI Technical Specifications Inside the processor a 10 kOhm resistor connects the tip terminal to a 5 V power supply When nothing
28. erature Humidity PCMCIA Interface Connector Standards Card Format Control Interface RS232 GPI Pedal Fader General Dimensions W x H x D Weight Finish Backup Battery Life Mains Voltage Power Consumption Warranty Parts and labor BNC AES3 id 75 ohm RCA Phono S PDIF AES3 id 24 bit S PDIF 24 bit EIAJ CP 340 IEC 958 HPF TPDF dither 8 to 24 bit BNC 75 ohm 0 6 to 10 Vpp 32 kHz 44 1 kHz 48 kHz 0 5 ms 48 kHz 0 to 1000 ms 24 bit at all sample rates DC to 23 9 kHz 0 01 dB 48 kHz 48 bit fixed point Asynchronous 120 dB 106 dB 44 1 to 48 kHz 1 kHz 2 dBFS 31 kHz to 49 kHz XLR balanced pin 2 hot 20 kOhm balanced 28 dBu balanced 4 dBu balanced 24 bit 1 bit 128 times oversampling 0 8 ms 48 kHz 7103 dB unweighted gt 106 dB A 95 dB 0 0018 96 1 kHz 6 dBFS FS 18 dBu 10 Hz to 20 kHz 0 0 2 dB 80 dB 10 Hz to 20 kHz typical 100 dB 1 kHz XLR balanced pin 2 hot Through relay 40 Ohm balanced 26 dBu balanced 4 dBu to 26 dBu balanced 24 bit 1 bit 128 times oversampling 0 57 ms 48 kHz 7100 dB unweighted gt 104 dB A 86 dB 0 005 1 kHz 6 dBFS FS 18 dBu 10 Hz to 20 kHz 0 0 5 dB 60 dB 10 Hz to 20 kHz typical 90 dB 1 kHz EN 55103 1 and EN 55103 2 FCC part 15 Class B CISPR 22 Class B IEC 60065 EN 60065 UL60065 and CSA E60065 CSA FILE 186633 32 F to 122 F 0 C to 50 C 22
29. f any DB processor Within two years of the original purchase users may upgrade DB2 to DB4 or DB8 and DB4 to DB8 at only the price difference plus a modest handling cost For let s face it Nobody knows if your audience will prefer stereo multiple stereo multichannel or something else so we want to ensure that you can stay as flexible and as automated as possible at a minimum entry cost yet retain a valuable option to upgrade The Transparent Loop TC Electronic is the world s premier supplier of automatic loudness correction equipment It has developed a high quality loudness range trickle down concept that works independently of metadata but is nevertheless fully compliant with metadata in for instance the AC3 codec DB processors not only automate loudness control in a proper way they also help take the extra workload and unpredictable behavior out of the codec Applied in ingest and or transmission DB processors are part of a transparent loop based on open EBU and ITU standards spanning from production over transmission to delivery at the home Pro duction can use metering of any brand compliant with these standards including TC Electronic s LM5D radar meter and obtain predictable results across broadcast platforms News soap commer cial film music promo All genres are covered INTRODUCTION The Tools DB 2 offers broadcasters a wide variety of connection options to ensure simple yet comprehensive integration int
30. in mastering to bring up low levels e g when preparing film or concerts for domestic or noisy environment listening 5 BAND PAGE Try setting the Steer and or Threshold parame ters differently in the bands to hear the effect High Steer values add more detail gain than low values but remember that Threshold has to be negative to add detail gain at all DXP Threshold relates to the Reference Level set on the Main page To disable detail gain at very low levels use the Defeat Threshold and Defeat Ratio controls Defeat threshold relates to the DXP threshold and allows for a certain level window inside which detail gain is applied Defeat Ratio determines the slope at which DXP detail gain is defeated 33 LIMITER Link Limiter Range On Off When Link is active the same amount of peak limiting is always applied to both channels Some broadcasters like the sound of operating left and right limiting without stereo coupling because they feel that it maximizes loudness and widens the stereo image Of course you should always choose unlinked Limiter operation on dual mono sources The Configuration control on the Main ZA page does not affect the Link Limiter Ter setting This link is running individually from the selected configuration SoftClip A L and B RSoftClip A L and B R Parameter range 3 dB to Off When active SoftClip applies a saturation effect to signals that come close to maximum Ou
31. lly delays the output signal continued 25 MAIN PAGE Configuration Processing Overview Digital FILTERS Digital Configuration Reference Level Reference Level defines the standard operating level and scales the Threshold and Target Level parameters of the Loudness control and Multiband section accordingly The Threshold of the Limiter is not influenced by this setting but is always relative to 0 dBFS Typical Reference Level settings would be 20 dBFS in the America and some parts of Asia and 18 dBFS in Europe Japan and some parts of Asia If you wish to relate all levels to 0 dBFS leave the Reference Level setting at 0 dBFS Analog vs Digital level If you use analog interfacing remember to always define the relationship between absolute analog and digital level before adjusting parameters in the Engines Typical analog I O level scaling would be 24 dBu in the Americas and some parts of Asia and 18 dBu in Europe Japan and some parts of Asia 26 Limit Link Unlink 5 BAND m 24 Bit Note 1 Be careful when switching between configurations Going from Dual Mono to Stereo will result in parameter settings of the left or A channel being copied to the right or B channel Going from Dual Mono to Stereo and back to Dual Mono will therefore overwrite the original settings for the right channel or B channel Note 2 In all configuration modes linking
32. nal only has to be slightly below the Defeat Threshold before the compressor gain is fully defeated DXP Mode Introduction The 5 band section works either in normal com pression mode or in DXP Detail Expansion mode Instead of attenuating signals above a certain threshold DXP mode lifts up signals that are below the Threshold thereby bringing out details rather than squashing the loud parts DXP mode therefore is capable of adding intelli gibility and air to speech lifting harmonics or emphasizing ambience without increasing overall peak level OdBFS aza Twas 4 y 2448 244 24 2 36dB o 48 46048 mma 7208 Stes pz 84dB 96dB 108dB INPUT LEVEL 12008 o o m 8 o m o 8 e 8656 3 i 5 As shown in the illustration gain is positive below threshold unity at Threshold and the effect decreases above Threshold In DXP mode Ratio becomes Steer Steer can be regarded as an adaptive Ratio that gradually approaches 1 1 above the threshold Multiband DXP DXP mode can be used with any number of bands up to five Multiband DXP is particularly effective in bringing out air and clarity The processor can act as an automatic EQ that removes a boost when it s not needed at very low levels where noise is dominant and at loud levels where sibilance would become a problem Apart from being effective on speech DXP mode can also be used
33. not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver e Connect the equipment into an outlet on a circuit different from that to which the receiver is connected e Consult the dealer or an experienced radio TV technician for help For the customers in Canada This Class B digital apparatus complies with Canadian ICES 003 Cet appareil num rique de la classe B est conforme la norme NMB 003 du Canada of Conformity N TC Electronic A S Sindalsvej 34 8240 Risskov Denmark hereby declares on own responsibility that following products DB2 Loudness Consistency Processor that is covered by this certificate and marked with CE label conforms with following standards EN 60065 Safety requirements for mains IEC 60065 operated electronic and related apparatus for household and similar general use Product family standard for audio video audio visual and entertainment lighting control apparatus for professional use Part 1 Emission Product family standard for audio video audio visual and entertainment lighting control apparatus for professional use Part 2 Immunity
34. o Hi to access all four parameters on individual bands Click BYPASS EQ to bypass all three bands Type Selector Click TYPE and use faders 1 to 3 to select filter types For Lo and Hi filters you can select between these filter types Parametric Notch Shelve and Cut Eor the Mid filter select between these filter types Parametric and Notch 29 EQ PAGE Parametric Filter Broad Type Parametric fer broad banawaka Frequency 4 Shelving Filter Sene fiber dict Frequency pz Notch Filter Narrow Type Notch Ser narrow bandw dn 2 Frequency 4 30 Cut Filter Bessel Type Cut Miter Bessel m 23 Frequency H2 Cut Filter Butterworth Type Cu fitr Butterworth Freq Click FREQ and use Faders 1 to 3 to adjust the frequency for each of the three bands Range Lo band 20 Hz to 20 kHz Range Mid band 20 Hz to 20 kHz Range band 20 Hz to 40 kHz Gain Click GAIN and use Faders 1 to 3 to adjust gain for each of the three EQ bands Range for Parametric Shelve and Cut types Lo Gain 12 dB to 12 dB Mid Gain 12 dB to 12 dB Hi Gain 12 dB to 12 dB Range for the Notch filter Lo Gain 100 dB to 0 dB Mid Gain 100 dB to 0 dB Hi Gain 100 dB to 0 dB Type Click TYPE and use Faders 1 to 3 to set the BW value for each of the three EQ bands Range for the Notch filter Lo BW 0 02 oct to 1 oct Mid BW 0 02 oct to 1 oct Hi BW 0
35. o all of the most popular broadcasting systems DB 2 can also be controlled remotely with TC s award winning Icon software allowing direct parameter control and preset switching from any location Based on an immensely powerful low latency topology DB2 offers a host of 48 bit resolution tools to be invoked simultaneously Loudness correction as per ITU R BS 1770 5 band Level Optimization Online Delay Adjustment Adaptive Limiting Emphasis Compensation Filtering and EQ Stereo Width Adjustment The Connections Audio I O include 24 bit AES3 id on BNC connectors and balanced analog on XLR connectors with analog domain gain scaling Digital as well as analog inputs and outputs feature hardware bypass Remote control may be established via RS232 USB and or GPI and SNMP signaling is available via the Icon application un x 3 4 5 R 50 40 30 24 20 18 z 9 z tc electronic Ser AA e 4 5 L 8 80 40 30 24 20 1 R GAIN LO OPTIMIZE HI About this manual The latest manual revision can always be downloaded from www tcelectronic com If you have questions that are not answered by this manual you may want to use our TC Support Interactive site This site is also accessed via www tcelectronic com UU UU lO GO SUPE Quick Guide Requirements One DB2 Loudness Consistency Processor and a computer with an Intel Pentium or better processor and Windows 95 98 NT 2000 ME or
36. r Open the folder TC Icon Software Editor MS Installer and double click on TC Icon X Xx zip Select a location to unzip the files to Windows Temp is automatically suggested Click FINISH Restart your computer when prompted to After restart the installation of the TC Icon Software Editor will proceed Follow the instructions A TC Icon shortcut will appear both on the desktop and in the Start menu The MS installer is a small installation program by Microsoft which is required to run a regular msi update The program is installed on most computers running Windows 98 SE and up EX DB2 needs Icon software 4 01 or higher reri for correct operation 13 THE TC ICON EDITOR Introduction The TC Icon Software Editor is a generic editor that currently controls the following products by TC Electronic System 6000 DB 8 DB 4 P2 Reverb4000 and DB2 In this section only subjects relevant for usage with the DB2 will be discussed DB2 is connected to your computer via a serial COM port RS232 or via the supplied RS232 to USB converter EX Please note that RS232 can be used EN over long distances up to 200 meters whereas the cable length should not exceed 10 meters when the RS232 to USB converter is used NOTE Navigating the Software Editor or TC Icon display is easy once you have grasped the basic concepts explained in the following section Basics Click the top tabs to make prima
37. r at right side The upper part of this page holds information on the current software versions and the serial number of the accessed unit Network Identification This is a simple naming function that enables you to name each connected unit UI Icon Views On the Icon Setup page two sub pages are available for controlling the TC Icon software s appearance rs Fader Appearance Three options are available Changes will take place next time you open the TC Icon Faders at bottom Color Page Use this page to select a color scheme you like or to create your own xil 23 PAGE Input amp Clock Input Select Range Analog Digital Use this parameter to select the appropriate input type Digital Input Select Range AES3 id S PDIF Use this parameter to select the digital input format Clock Select Range Internal 44 1 Internal 48k Word Clock Ext DI Use this parameter to select the output sample rate Digital SRC Range On Off For optimum performance establish a synchro nous signal path Sample rate conversion reduces the dynamic range a bit and adds latency 24 Analog Levels Analog Scale Range 3 to 27 dBu Full scale Use this parameter to set the sensitivity of the analog input Analog In Offset Range 3 to 25 dBu Full scale Use this parameter to set the analog input level Analog Out Offset Range 3 to 24 dBu Full
38. rence Level at 20 dBFS and Target Level at 1 dB the loudness section of DB2 targets a loudness of 21 LKFS For instance this would be a typical setting for having Dialnorm in AC3 set statically at 23 or 24 Max Reduction Range 20 dB to 0 dB This is the maximum attenuation the Loudness Control is allowed to perform If set to 0 0 dB the Loudness Control cannot attenuate the signal at all The level diagram on the next page is shown with Max Reduction set at 0 0 dB Max Gain Range 0 to 20 dB This is the maximum gain the Loudness Control is allowed to perform If set to 0 0 dB the Loudness Control cannot add gain to the signal at all Freeze Level Range 10 dB to 40 dB Use this parameter to set the minimum level required before the Loudness Control will start adding more gain It would typically be set to avoid boosting signals considered noise The Freeze Level parameter is relative to the Reference Level setting on the Main page 27 LOUDNESS PAGE Freeze Hold Range 0 to 5 seconds When the input signal drops below the Freeze Level the Gain Correction of the Loudness Section is frozen for the period you set with the Hold parameter When the Hold period expires the Gain Correction falls back to 0 dB gain dB Target PVV Vf Slow Window Time Level Trim Range 18 dB to 18 dB Because DB2 internally operates with 48 bit precision on all audio signals it is possible to correct loudness
39. ry selections Click the side tabs or elements to make secondary selections On the Setup UI page select either Faders at bottom or Fader at Right Side Click on parameter value fields to instantly assign parameters to Fader 6 Adjust values using Faders 1 to 6 Also see the explanation of LINK on next page Unpacked and ready Connect the DB2 according to the illustra tions on page 12 Install the software according to the explana tions on the previous page of this manual Power up DB2 and start the TC Icon software on your computer Go to the Setup Devices Ports page to select the COM port 1 to 4 to which you have connected the DB2 Select the correct port Note that when you open the Setup Port page for the first time all COM ports 1 to 4 are selected 14 EX Another active application may access EP the selected COM Port resulting in a conflict If this is the case you should close that application or connect the DB2 to another COM port Also see this manual s Troubleshooting section NOTE Goto the TC Icon Setup Devices page Click the DETECT button The TC Icon Editor will scan the System and find the connected DB2 s When the connected DB2 is detected assign the unit to one of the eight shortcut buttons on the right side of the display by clicking one of the eight buttons see above Any button will do When several units are connected this page serves as a
40. s folder if the MS Installer has already been installed on your computer Afolder called TC Icon Software Editor MS Installer use the contents of this folder if MS Installer has not been installed on your computer see below The DB2 Manual in PDF format Installing the TC Icon Software Editor Your computer probably holds the required MS Installer program and you only need to run the file called TC Icon x xx msi This file is located on the CD in the folder called TC Icon Software Editor Update Version Exit all programs currently running on your computer and open the CD contents in Windows Explorer Open the folder called TC Icon Software Editor Update Version Copy the file called TC Icon x xx msi to a location on your computer s hard drive Double click the icon and follow the instruc tions A TC Icon shortcut will appear both on the desktop and in the Start menu Problems If during the process described above you have discovered that the required MS Installer program is NOT already installed on your computer you should run the installation file including the MS installer TC Icon x xx zip This file is located in the folder called TC Icon Software Editor Microsoft Installer This file includes both the Microsoft Installer Service and the TC Icon Software Editor Exit all programs currently running on your computer and open the CD contents in Windows Explore
41. scale Use this parameter to match the analog output gain to the following downstream device Digital Level Digital Out Offset Range 12 dB to 0 dB The Digital Out Offset parameter controls the digital output level in accordance to the set Analog Scale Output level MAIN PAGE Input In Gain Range 0 dB to Off There are separate level controls for the left and right Input A and B Phase Inv L R Range Normal Inverted Click to invert the phase of channels L R or both Delay Range 0 to 1000 ms Use this parameter for delay alignment of the input channels Depending on the selected con figuration type either one common Delay setting or individual delay settings are available Delay Unit Range ms 24 fps 25 fps 30 fps Use this parameter to select which unit should be used to display the Delay parameter Please note that changing this parameter does not affect the actual delay time Lo Cut Range Off to 200 Hz This is a second order LoCut filter on both inputs Hi Cut Range Off to 3 kHz This is an 8th order HiCut filter on both inputs Setup Look ahead Dly Range 0 to 15 ms If the 5 band compression sections is set to use very short Attack times up to approximately 10 to 15 ms overshoots may occur The Look ahead function allows the DB2 to evaluate the material just before processing This way artifacts can be prevented Be aware that the Look ahead delay function actua
42. setting to enable bypassing DB2 using an external switch Note that you may accidentally put DB2 to bypass mode when selecting between the GPI settings The Bypass function is defined on the System Front page Delay Select this setting to enable online adjustment of delay e g for lip sync using an external 19 SYSTEM I O PAGE switch or impulse relay DB2 measures the time interval between two switch closures and inserts this as its current delay The Delay parameter on the Engine Main page has a range from 0 to 1000 ms Thanks to a silent update mechanism the delay may be adjusted while audio is passed through the processor without introducing pitch change or click noise Preset Range 2 presets 4 presets or 8 presets Selection between up to 8 presets is achieved by feeding the processor a DC voltage to its 72 jack input The Input voltage is compared against voltage windows that correspond to certain presets Between the valid voltage windows invalid windows have been inserted to protect against erratic operation The processor constantly monitors the GPI input and only if several con Secutive measurements point to the same valid voltage window a recall is performed The voltage windows chosen enable easy binary relay encoding as shown on the next page in fig 1 If long cable runs are required HF decoupling using a ceramic capacitor across the tip and sleeve terminals inside the jack plug may be in
43. t Insert the card and power up using the front panel POWER key while holding the OK key pressed Press UTILITY until the display shows C CLONE Now press the OK key All settings with or without System Preset depending on your previous selection are now copied to the target DB2 NOTE 18 Bypass and Redundancy DB2 includes hardware bypass on its analog as well as AES3 id inputs and outputs When selected the unit furthermore constantly monitors its digital inputs for signal integrity If the digital input is lost automatic input redun dancy switching is invoked In this case DB2 switches to internal 48 kHz sample rate operation and analog inputs Redundancy alarm is indicated by the 48 kHz and Analog In LEDs blinking and the ERROR LED lit Once the digital input is reestablished DB2 reverts to normal operation and clears the alarm Parameters on the System page can be stored and recalled via System presets and are unaffected by normal Recall operations Clock Preferences Analog Range Internal 44 1 kHz Internal 48 kHz Ext W Clk External Word Clock Ext DI Sets the processing clock frequency to be used when analog inputs are used Digital Range Internal 44 1 kHz Internal 48 kHz Ext W Clk External Word Clock Ext DI Sets processing clock frequency to be used when processing signal from the AES or S PDIF input Digital w SRC Range Internal 44 1 kHz Internal 48 kHz
44. tput and ONE analog Input The Input meter for the used Input should show 12 dB The symbol will indicate that the test for the currently used input and output combination is positive The symbol will indicate that there is a problem with the input or the output In this case try the test with the other analog input output to narrow down the problem Connect the cable to the other output and input in order to test these Test 2 AES EBU In Out Test Connect AES EBU Input and Output using a balanced cable The INPUT meters should show 0 dB The symbol will indicate that the test is positive The symbol will indicate that there is a problem with the input or the output Test 3 S PDIF In Out Test Connect S PDIF Output and Input using an RCA cable The Input meters will show 0 dB The symbol will indicate that the test is positive The symbol will indicate that there is a problem with the input or the output 40 Test 4 RS232 remote I O Test Connect Rx and Tx on the RS 232 connector pin no 2 to pin no 3 The symbol will indicate that the test has been completed successfully The symbol will indicate that there is a problem Test 5 GPI Input Test Connect the tip and sleeve of the GPI Input jack using a switch When the switch is closed tip is connected to ground the symbol should be shown otherwise the symbol is shown
45. tput level The threshold is relative to the Threshold of the Brickwall Limiter This controlled distortion of transients works well for adding loudness but is not a desirable effect with some data compression codecs While the Brickwall Limiter is extremely low dis tortion SoftClip is not Use your own judgment to decide whether it improves your production or not Threshold A L amp Threshold B R Parameter range 12 to 0 0 dBFS Use these parameters to set the Threshold of the Brickwall Limiter The Threshold is relative to 0 dBFS not to the Reference Level set on the Main page The Brickwall Limiter uses 48 bit processing 34 with distortion figures surpassing the quality demands of DVD Audio mastering Oversam pling is used to prevent inter sample peaks from reaching the Output and time constants adapt to the Input signal Emphasis Emphasis compensation may be added to the limiter DB2 uses a sliding low pass filter to complement the limiter While emphasis is used in analog broadcast low bit rate codecs may also benefit sonically from this function Switch between emphasis Off HD and normal DTV broadcast 50 microsec 75 microsec and J17 NICAM emphasis Note When pro nounced Emphasis Limiting is required it is normally advisable to link the limiters to avoid a wildly changing stereo perspective HF Offset For Emphasis Limiting with no headroom against the response curve choose a 0 0 dB setting For
46. types of line cord and attachment plugs Check the voltage in your area and use the correct type See table below Voltage Line plug according to standard 110 to 125 UL817 and CSA C222 no 42 220 to 230 7 page VII SR section 107 2 D1 IEC 83 page C4 BS 1363 of 1984 Specification for 13A fused plugs and switched and unswitched Socket outlets This equipment should be installed near the socket outlet and disconnection of the device should be easily accessible To completely disconnect from AC mains dis connect the power supply cord from the AC receptacle The mains plug of the power supply shall remain readily operable Do not install in a confined space Do not open the unit risk of electric shock inside Caution You are cautioned that any change or modifica tions not expressively approved in this manual could void your authority to operate this equipment Service There are no user serviceable parts inside All service must be performed by qualified personnel IMPORTANT SAFETY INSTRUCTIONS EMC EMI These limits are designed to provide reason able protection against harmful interference in residential installations This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interfer ence will
47. w Window is the area around the set Target Level Within the Slow Window the Loudness is con trolled only gently When the signal exceeds the limits of the Slow Window the Loudness is treated more radically The results depend on the values of the Average Rate and Ratio parameters Loudness Measure ITU BS 1770 Use this setting to have loudness correction comply with the ITU loudness standard Reference Level plus Target Level is the value in LKFS DB2 aims for For instance if Reference Level is set to 18 dBFS and Target Level is set to 4 dB DB2 targets a loudness of 22 LKFS TC Grid Use this setting to have loudness correction comply with TC s legacy loudness standard called Grid Unlike BS 1770 Grid is not RMS based EQ Page EQ PAGE Introduction DB2 features a digital three band parametric EQ with high pass and low pass filters switch able between Notch Parametric Shelving and Cut types The needle sharp notch filter has a range down to 0 01 octave and the shelving filters has a variable slope ranging from gentle 3 dB oct over 6 and 9 to 12 dB oct Cut filters can be switched between 12 dB oct maximum flat amplitude Butterworth or flat group delay Bessel types The parametric equalizer features a natural and well defined bandwidth behavior at all gain and width settings Basic Operation Click the Lo Mid and Hi buttons to activate deactivate the EQ bands Select Freq Gain Type or L
Download Pdf Manuals
Related Search