ISOSTEM User Manual
Contents
1. 4 x AES OUT 4 x AES IN 6 x GPI Input E Output Matrix Matrix 4 x AES OUT ALARM 2 Parallel audio and alarm setup of an ISOSTEM Live pair for 24 7 operation For proper parallel operation the link interconnection is not mandatory Basically both devices run as single devices The external audio matrix has to process the devices alarm relay states ALARM 1 ALARM 2 and has to ensure that in all situations the AES inputs and AES outputs of each device are separated electrically ISOSTEM Live Integration Y 41 ISOSTEM USER MANUAL The schematic diagram shown below presents an example of the matrix s conditional processing by merely handling the alarm relay output of ISO STEM 1 If ALARM 1 independently of the alarm state of ISOSTEM 2 repre sents a fully functional state the audio matrix routes the AES data only to ISOSTEM 1 If ALARM 1 represents a failure switch over to the backup ISOSTEM 2 is effected ISOSTEM 1 may now be exchanged without interrupting the audio line It must be noted that after exchanging the formerly failed ISO STEM 1 the audio matrix will switch back to ISSOSTEM 1 because it will signal ALARM 1 OK In this example in the case that both devices fail ISOSTEM 2 receives the audio data But as it has a failure it just bypasses the AES data from input to output 4 x AES IN 4 x AES OUT ISOSTEM 1 ALARM 1 ISOSTEM 2 ALARM 2 4 x AES IN 4 x A2. connectors of the D Sub 25 breakout cable Connect the breakout cable to the unit s AES EBU I O port Use this channel scheme L AES Out 1 L R AES Out 1 R C AES Out 2 L LFE AES Out2R LS AES Out 3L RS AES Out3R e he USB to RS232 adapter provided should already be connected to a USB port on your computer see above chapter If not connect it now Next connect the adapter to ISOSTEM s RS232 port e Use the power cable to connect the ISOSTEM hardware to a mains outlet e Power on the ISOSTEM hardware using the mains switch on the rear side of the unit 4 SOFTWARE LAUNCH amp CONNECTION e Double click the IsostemGUI vXXX XXX exe file on your comput er to start the GUI software e Inthe GUI window the Hardware tab should be selected In the Com section top left use the Port Name option to select the COM port that your USB to RS232 adapter emulates Press the CONNECT button If the button changes to CONNECTED the mmm communication between the GUI software and the ISOSTEM CN hardware has been established successfully and you should see a message like this in the topmost GUI area Port Name Connected to lsostem hw1 expert device 2 2 0 1 167 If no connection has been established try another COM port Port Name and press the CONNECT button once more 5 HARDWARE INIT amp PRESET SELECTION If your ISOSTEM unit has been used by others before it might be a good idea to reset it to
3. Functions SUB The SUB button is used to toggle the SUB processing module between active and bypass mode The SUB function treats the Sub LFE channel of the internal bus at the output of the PA and VM modules It determines the multichannel signal format issued 5 0 or 5 1 When the SUB function is activated the Sub output channel is active Otherwise the Sub channel is assigned to the L and R channels The adjustment parameters can be found in the Sub tab of the multifunctional area 36 Y GUI Software Reference ISOSTEM USER MANUAL PHASE SO AND MASTER FUNCTIONS Phase The Phase function shifts the phase of lateral and rear channels L R sL and sR because up converting introduces a negative tendency in L R and SL sR correlation This phenomenon is due to the fact that the correlated part of the original stereo signal meets in the C channel The Phase function prevents this aspect by shifting the phase of the L R and sL sR signals through only one variable The variable is calibrated from zero to one hundred percent and applies a phase shift modeled on the physical angled distances of the loudspeakers Unit Percent Range 100 0 Iso Bal The ISO balance function assures compatibility between the stereo and multichannel formats The difference between downmix and original stereo signal is called intermix This intermix is inserted in the multichannel sig nal so that the downmix is mathematically identical
4. tinuous surround program independent of the source material format In addition ISOSTEM exclusively offers management of the intermix the difference between the downmix of the multichannel signal and the refer ence stereo signal to assure the compatibility of the produced signals European patent office reference EP 2046076 Two hardware variants of ISOSTEM are available ISOSTEM Expert contains a full range of functions and setting parameters Individual setups can be created using the SOSTEM GUI software and saved as presets ISOSTEM Live was created for daily broadcast use where creating indi vidual presets is not a relevant option This version can use the factory pre sets as well as any other presets created on an ISOSTEMP Expert unit Both hardware variants are delivered with a GUI software that runs on Mi crosoft amp Windows computers The software is used for the real time con figuration of all parameters while the 1U hardware unit performs the nec essary signal processing 6 Y Introduction ISOSTEM 9 USER MANUAL This page is intentionally left blank Introduction Y 7 ISOSTEM 9 USER MANUAL QUICK START Before going into the system s details here is what you need to do to carry out a quick trial 1 NECESSARY ITEMS Check that you have the following items available ISOSTEM hardware unit Expert or Live version Power cable supplied USB to RS232 adapter cable supplied CD ROM with SO
5. GUI soft ware Function Pin TXD 2 RXD 3 CTS 7 RS232 interface on rear side RTS 8 GND 5 SHIELD EE CASE 44 Y Appendix ISOSTEM USER MANUAL ALARM PORT The alarm port indicates the device status electrically It is a 2 pin 2 5 mm PHOENIX male connector Internally the two pins are connected to relay contacts thus it is a fully passive interface with two states Contacts closed No alarm device fully functional Contacts open Device failure or no power supplied Max load to relay contacts 2 mA 250 VAC WORD CLOCK INPUT 1 x BNC max 2 5Vp p AES EBU INTERFACE The AES EBU connector wiring is compatible to the Tascam pinout TASCAM DIGIDESIGN Sub D 25 pining 13 1 CAY 25 14 m oo en SES SH Si ler om Ter iem a hot cold hot pin 4 nes out MZA hot pin 15 co pin 5 hot ie dE S Appendix 9 45 ISOSTEM USER MANUAL APPENDIX B SCHEMATIC BLOCK DIAGRAM TT A B D Input selector PA DE spatial spectrum analyser d Angle PA attenuator Angle Depth 0 3 6 dB i Depth e Rear Frequency smooth 2 m Time Smooth PA L PA R PA C Sub PA sL PA SR m 3 PA Filters 4 PA discrete te PA discrete C Level FLL PA discrete Gain sL sR Level 9 36 L R C gt sub sL sR AGES SC O Center Frequency er A ws 2 Delta Frequency
6. LED on or no power supplied Proprietary port for cross connecting two SOSTEM LIVE units backup operation For a technical description of the above hardware interfaces pinouts etc please refer to Appendix A Interface Specification Please note For more details about system integration using the GPI Alarm and Link ports please also refer to the Isostem Live Integration chapter Hardware 15 ISOSTEM 9 USER MANUAL SYNCHRONIZATION The ISOSTEM hardware always uses a sample rate of 48 kHz All Sync parameters are set in the Sync section of the Hardware tab in the GUI software see Hardware Tab In order to suppress any risk of digital clicks each AES channel has an independent transceiver In addition all AES inputs are equipped with sample rate converters SRC So even when syncing to the internal clock the unit will accept external asynchronous AES signals However in order to ensure that SOSTEM s audio outputs are in sync with the studio envi ronment it might be advisable in most cases to use external synchroniza tion The following sync sources are available e AES input recovered clock e External Word Clock e Internal 48 kHz clock Please note If the AES 1 Input option was selected as the primary clock source see Sync in Hardware tab chapter ISOSTEM will only look for sync on its AES 1 input In order to sync to an external AES signal always make sure you use the AES 1 input
7. R Monitor DOWNMIX In DOWNMIX monitor mode the downmixed surround outputs are moni tored through the multichannel outputs L R Monitor INTERMIX In INTERMIX monitor mode the differential signal between the downmixed surround outputs and the original stereo input signal is monitored through the multichannel outputs L R Functions ISO The ISO button is used to toggle the ISO processing module between ac tive and bypass mode The ISO function can be activated to ensure that a stereo downmix of the ISOSTEM s surround output signals is perfectly compatible with the original stereo source This is done by creating the dif ferential signal between downmix and stereo signal This intermix signal is then injected into the surround model in a way that downmix and stereo signal are identical The ISO function can be easily disabled for applications not enforcing perfect compatibility between the two Functions PHA The PHA button is used to toggle the PHA processing module between active and bypass mode For more details on the PHA module please refer to the following chapter Functions HCF The HCF button is used to toggle the HCF processing module between active and bypass mode The HCF function is an attenuation of the high frequencies applied to the rear channels on the internal bus at the output of the PA and VM modules The filter adjustment parameters can be found in the HCF tab of the multifunctional area
8. adapter its driver software has to be installed first see Software installation in the Quick Start chapter and you will have to select the COM port that your adapter emu lates CONNECT CONNECTED After having selected the COM port press this button to establish commu nication If the button changes to CONNECTED the communication be tween the GUI software and the ISOSTEM hardware has been established successfully and you should see a message like this in the topmost GUI area Connected to lsostem hw expert device 2 2 0 1 r67 If no connection has been established try another COM port and press the CONNECT button again DISCONNECT DISCONNECTED Use this button to disconnect the hardware unit from the GUI software Af ter doing so a dialog box will provide the option of writing the current con figuration into the Startup register The same dialog will pop up when closing down the GUI software Do ing so ensures that the system will load this configura tion during the next startup This also includes the syn chronization and automation settings GUI Software Reference 17 ISOSTEM 9 USER MANUAL SYNC Latency Synchronization The minimum audio processing latency is 40 ms If working in audio for video environments it is recommended that you adjust the laten cy according to the video frame rate used Device Latency This display shows the current audio processing latency Synchronize to Fra
9. can then be distributed to the surround channels following aesthetic considerations It is important to point out the fact that no additional signal elements are created by this process in fact the existing elements are only distributed in a new way Please note While editing the Panoramic Analyzer s parameters it is a good idea to watch its graphic representation in the PA tab see Multifunc tional Area PA Level This fader adjusts the direct output levels for all six discrete output signals of the Panoramic Analyzer PA However it does not affect the signals that the Side level and Rear Level faders contribute to the output bus ses Unit dB Range 0 dB inf Please note On the Bus tab of the multifunctional area the individual levels of the L R C Sub and sL sR channels can be adjusted separately GUI Software Reference 27 ISOSTEM USER MANUAL PA Level Mute Solo These buttons are used to mute or solo the Pano ramic Analyzer s discrete output signals Angle This fader adjusts the opening angle of the stereo signal Its position is reflected in the PA tab of the multifunctional area by two vertical grey lines see Multifunctional Area Unit Degrees Range 0 180 Depth This fader controls the depth of the dynamic filtering performed by the Pan oramic Analyzer Unit Percent Range 100 0 Please note Both Angle and Depth parameters are the crucial basis for the Panoram
10. poi en pur n x ee eae d Level Vu e Input selector Input selector A Direct L R Direct sL sR WEE Hp qi l l Hp Hl A IT A E qH LL CT i i ER SS 7 ER Direct Direct 50 e L R Level qu LH sL sR Level D edd SS SS Direct Direct 3dB 0 1 5 3 6dB inf C Level LFE Level Dl e Db gt L yi Ss cum cum A W YA WA E C o AL h I A W VA SS Sei CO ro Am me e Nm SS Ol A ES Ee v SV EN EF EF EN E S S sR F AY A AN AQ EN E GS 4 m A RE SE E OO gt LLLA 46 Y Appendix ISOSTEM USER MANUAL E F G H E o Isostem v2 6 Input selector K Sum Signal Distribute DSP Mute Solo Fixed gain High Cut Filter Variable Gain Phase Shifter Delay Bass management Phase shift ISO management Phase inverse CF H VM discrete Center Frequency L R Level 5 Delta Frequency VM discrete C Level Je EE EE ME id 4 Au Aug Phase VM discrete j d EX 4 VM sL sR Level i i Level 3 ae dan EN pM Lt Rt Stereo StL out from 71 mode 6 Lat StR out from 74 mode mys F Lout 2 m fs Rout pM 7 e A Downmix attenuators T MA a 77 07 EB RW I ee Ans 7 1 mode jw Am Am lv AN AW Am E Sg Base 8 OF 7 DD AS AW eo 7008 SL out MiSs sR out sR out EL G Lo HH jJ Appendix Y 47 ISOSTEM USER MANUAL APPENDIX C FACTORY P
11. x GPI PRESET 4 x AES OUT Example showing ISOSTEM 1 in alarm state ISOSTEM 1 bypasses ISOSTEM 2 processes All possible situations in linked mode are No alarm One device processes in our example ISOSTEM 1 the other is the backup it bypasses audio ISOSTEM 1 with alarm SOSTEM 2 no alarm The backup ISO STEM 2 takes over and processes whereas ISOSTEM 1 bypasses and signals its failure state by LED and alarm relay ISOSTEM 2 with alarm the backup device ISOSTEM 1 no alarm The backup device SOSTEM 2 cannot provide backup any more but of course stays in bypass It signals its failure state by LED and alarm relay ISOSTEM 1 and ISOSTEM 2 with alarm Both devices are forced to bypass audio i e the audio chain is not disconnected but no ISO processing is made Both devices signal their failure state by LED and alarm relay 40 Y SOSTEMO Live Integration ISOSTEM USER MANUAL PARALLEL SETUP FOR 24 7 OPERATION The diagram shown below presents the parallel audio setup of an ISO STEM Live pair An external audio matrix with following capability is re quired Two quadruple AES input crosspoints CPI 1 CPI 2 two quadruple AES output crosspoints CPO 1 CPO 2 and two binary control inputs handling the alarm outputs of the ISOSTEM devices with the ability of conditional processing to control the AES crosspoints CPI 1 2 and CPO 1 2 6 x GPI PRESET
12. ES OUT ALARM 1 ISOSTEM 2 ARM 2 AL IF CPI 1 2 cPo 1 ALARM 1 OK Output Matrix Input Matrix THEN Switch on In Out Crosspoint to ISOSTEM 1 Switch off In Out Crosspoint for ISOSTEM 2 IF ALARM 1 ERROR Output Matrix THEN Input Matrix Switch off In Out Crosspoint to ISOSTEM 1 Switch on In Out Crosspoint for ISOSTEM 2 CPI 2 2 cpo 2 Example of conditional processing for proper audio routing PRESET RECALL SYNCHRONIZATION In linked redundant mode both GPI ports have to be interconnected in par allel as shown in the schematic diagram above Thus preset recall actions are processed by both devices synchronously This ensures that the back up device always runs in the same mode as the current processing device PRESET MANAGEMENT SYNCHRONIZATION ISOSTEM Live s PC based graphic user interface GUI allows for man agement of the six preset memories Presets can be read from the PC and stored in the device s preset memory In redundant setups the user has to synchronize the preset content and memory assignment manually Future GUI and firmware revisions will offer automatic synchronization of parameters and preset memories via the link port 42 Y SOSTEMO Live Integration ISOSTEM 9 USER MANUAL APPENDIX APPENDIX A INTERFACE SPECIFICATION GPI PORT The GPI port of ISOSTEM features an easy way to recall si
13. ISOSTEM High end multichannel from stereo ISOSTEM Expert ISOSTEM Live User Manual DSPECIALISTS Digitale Audio und Messsysteme GmbH Helmholtzstr 2 9 L Manual version v1 0 D 10587 Berlin Firmware version Min v2 6 0 0 www isostem de GUI software version Min v2 6 0 0 www dspecialists de ISOSTEM USER MANUAL CONTENT CONTO oe ee eee 3 ci A e A 5 gig e o o O A 6 Ie a 8 1 Necessary HEMS EE 8 2 Software installation ooocoonciccnciconcccncocnonononaconanonanonnnonnnnns 8 3 Cabling POWECR OD ee casar aa 9 4 Software Launch amp Connection oocccocccncocccoccocconncnconnnononcnnnnnns 9 5 Hardware Init amp Preset Gelechon 9 O EIS FS NN BEE 10 System Overview ENEE 12 Bel BOCIIMIOIOO ANN Em 12 AUGO rOCE SS Meine E ICE 12 gig AD mU c I yan 14 FON NG aT 14 Rear Panel Connectors nee 15 S VNCMONIZA NON BEE 16 GUI Software Reference A 17 Hardware TaD E 17 A 17 Ee 18 xlii 19 Ee e NEM ERR REN OE 21 gni EES 24 NC O 24 a A ES A 26 Content Y 3 ISOSTEM 9 USER MANUAL Write Protection cccccccscccecceeeseeeceesaeeceesueeceesaeeeeeseseeeseeseeeseesaeees 26 Fac ROSO oe ee eee ee 26 Expert Tab Expert hardware version only 2f Panoramic Analyzer DA 2f V
14. O module calculates the difference between an internal stereo downmix of the upmixed 5 1 surround signals and an external stereo refer ence signal Controlling the signal in the frequency domain ISO takes care of the following additional tasks Assures compatibility by injecting the intermix signal L R C LS RS Phase correction of the L R front and rear channels L R LS RS High frequency attenuation for the rear channels LS RS LFE channel management System Overview Y 13 ISOSTEM USER MANUAL HARDWARE ISOSTEMP is available in two different hardware variants ISOSTEM Expert contains a full range of functions and setting parame ters Individual setups can be created using the SOSTEM GUI software and saved as presets Up to 6 presets can be stored locally in the hard ware s memory while the GUI also allows for unlimited preset storage on your computer In addition presets can be transferred to any other ISO STEM ISOSTEM Live was created for daily broadcast use where creating indi vidual presets is not a relevant option This version can use the factory pre sets as well as any other presets created on an ISOSTEM Expert unit However its limited GUI functionality does not allow for editing presets at parameter level SOSTEM Live also features a redundant backup func tion If one of two connected devices fails the system will switch to the oth er device automatically FRONT PANEL The front
15. RESETS Diversity D narrow narrow narrow middle wide Stereo In Upmix L R Upmix C LFE Upmix sL sR Stereo out Stereo In Upmix L R Upmix C LFE Upmix sL sR Stereo out Stereo In Upmix L R Upmix C LFE Upmix sL sR Stereo out Stereo In Upmix L R Upmix C LFE Upmix sL sR Stereo out Stereo In Upmix L R Upmix C LFE Upmix sL sR Stereo out AES 4 In AES 1 Out AES 2 Out AES 3 Out AES 4 Out AES 4 In AES 1 Out AES 2 Out AES 3 Out AES 4 Out AES 4 In AES 1 Out AES 2 Out AES 3 Out AES 4 Out AES 4 In AES 1 Out AES 2 Out AES 3 Out AES 4 Out AES 4 In AES 1 Out AES 2 Out AES 3 Out AES 4 Out AES 1 4 In AES 1 4 Out Please note These presets represent the factory settings of firmware v2 6 48 Y Appendix ISOSTEM 9 USER MANUAL APPENDIX D PANORAMIC ANALYZER PHYSICS Acoustic modeling has the goal of extracting the ghost sources of the ste reo signal by their positioning in the stereo mix The signal is treated by acoustic simulation and the pressure and pressure gradient data establish the distribution of the energy fluxes in the frequency domain at the listening point OS o 180 sL L C R SR Acoustic Simulation Energy Distribution and Panoramic Law This distribution is modeled then projected on the panoramic law of the reproduction system here five channels in the ITU R BS 1770 standard resulting
16. STEM GUI software supplied Driver CD ROM for USB to RS232 adapter Supplied A computer running Microsoft Windows 2K XP Vista 7 32 64 bit operating system with one free USB port Stereo audio source with AES3 digital output 2 channels 5 1 surround playback system with 3 digital AES3 audio inputs six channels D Sub 25 breakout cable Tascam Pinout to connect the source and the playback system to the ISOSTEM hardware 2 SOFTWARE INSTALLATION USB to RS232 adapter Install the appropriate driver of the USB to Serial converter which has been delivered with the unit You find the drivers in the USB to Serial Converter subfolder of the ISOSTEM CD ROM provided with the hardware unit ISOSTEM GUI software and presets No particular installation procedure is needed for the SOSTEM GUI software Just load the ISOSTEM CD ROM provided with the hardware unit and copy the IsostemGUl exe files found in the CD ROM s ISOSTEM Software subfolder to a suitable location on your computer s hard drive Use the expert version of the executable to connect to the Expert hardware variant and the live version to connect to the Live variant 8 Y Quick Start ISOSTEM USER MANUAL 3 CABLING amp POWER ON e Connect a digital stereo audio source to the AES In 4 connector of the D Sub 25 breakout cable e Connect 3 digital AES3 inputs 6 channels of your surround moni toring system to the AES Out 1 AES Out 2 and AES Out 3
17. The corresponding preset is called e Auto 1 Invoke Parallel channel automation see below e Auto 2 Invoke Serial channel automation see below Please note To use these options the Mode has to be set to GPP GUI Software Reference 21 ISOSTEM 9 USER MANUAL Parallel and Serial Channel Automation These two modes are dedicated to 5 1 2 broadcasting from various audio program tracks The idea behind it is to setup a system that will automati cally respond to certain signal input configurations 5 1 or stereo by select ing the appropriate presets In this way 5 1 signals may be processed to 5 1 LtRt while stereo signals are transferred to 5 1 LoRo stems The two available modes address two types of play lists that are presented to the ISOSTEM inputs e The Serial mode is used for a playlist containing stereo and 5 1 tracks on the same channels serial play list of programmes or EE Cos Processed 5 142 programmes 5 MER AE e In contrast to this the Parallel mode is used for a playlist contain ing stereo and 5 1 tracks on separate channels Parallel play list of programmes HS 5 142 programmes Ca HE HS Processed 22 9 GUI Software Reference Channel Automation Condition true false W Auto 1 Parallel M Auto 2 Seral ISOSTEM USER MANUAL The levels of channels specifi cally allocated to 5 1 are moni AES inputs 1 3 all low or tored by the syst
18. VM window features a graphic representation of the virtual 5 0 microphone setup used by the VM module The angle set in the VM parameter section is represented by two light grey lines the form of the virtual microphones show the polar pattern set with the Lobes parameter Rotation This parameter sets the axial rotation of the VM module Among other things it can be helpful in order to correct an imbalanced stereo picture The effect of editing this parameter can be monitored in the visualization Unit Degrees Range 180 180 Inputs Window The Inputs window features an input matrix covering all signal processing modules and all four AES3 inputs One of the signal inputs can be assigned to each of the mod ules Also horizontal bar graph level meters are available for all module input channels Please note L and R channels of each AES3 input are always switched in common Outputs Window The Outputs window features a matrix covering all eight outputs of the in ternal bus system and all AES3 outputs Each physical output can be assigned to any one of the bus outputs individually However it is not possible to assign one bus output to more than one physical output or vice versa horizontal bar graph level meters are available for all bus output channels mee Please note L and R channels of each AES3 output can be switched in dependently Bus Window The Bus window features discrete channel faders for the ou
19. ader adjusts the direct level of the L and R front chan nels Unit dB Range 0 dB inf L R Mute Solo These buttons are used to mute or solo the L R fader signal GUI Software Reference 31 ISOSTEM 9 USER MANUAL C This fader adjusts the direct level of the Center channel Unit dB Range 0 dB inf LFE This fader adjusts the direct level of the LFE channel Unit dB Range 0 dB inf C LFE Mute Solo These buttons are used to mute or solo the Center and LFE fader signals SL SR This fader adjusts the direct level of the SL and SR rear channels Unit dB Range 0 dB inf SL SR Mute Solo These buttons are used to mute or solo the SL SR fader signal PA Window The PA window features a visualization of the Pano ramic Analyzer s dynamic filtering with overlapping filter bands The angle set in the PA parameter section is represented by two light grey vertical lines A vertical spectrogram of the incoming stereo source is shown between these lines Rotation This parameter sets the axial rotation of the PA module Among other things it can be helpful in order to correct an imbalanced stereo picture The effect of editing this parameter can be monitored in the visualization Unit Degrees Range 180 180 Brightness This parameter sets the spectrogram s brightness 32 Y GUI Software Reference CAES z Ref m NM NM E a ISOSTEM 9 USER MANUAL VM Window The
20. are All Presets loads all six presets stored in the hardware to a file buffer for a write action to a All Presets File e Press the READ button to load the selected preset source The pre set is loaded to the GUI now and all parameters are displayed in the lower part of the Admin window Please note When reading All Presets File or All Presets the parameter display does not change because these presets are read to a hidden file buffer 24 Y GUI Software Reference ISOSTEM USER MANUAL To write a configuration to a target e Select a target in the field behind to in the second line The follow ing options are available Single Preset File save the displayed settings in a single preset to a file on your computer All Presets File save all presets currently saved in the file buffer after having read All Presets to a file on your computer Startup save the currently displayed configuration for system startup Current transmit the currently displayed configuration to the hardware where it becomes active as a volatile setting not stored in the preset memory Preset 1 6 save the currently displayed configuration to one of the hardware presets slots All Presets save all presets currently saved in the file buffer after having read a All Presets File to all hardware presets slots e Press the WRITE button The current GUI configuration is trans ferred to the selected targe
21. be noted that the daisy chained setup may not apply to systems intended to operate 24 hours and 7 days a week This is due to the fact that in cases of failure the audio chain is disconnected while exchanging the failed device 24 7 systems are handled by a parallel SOSTEM Live audio setup see next chapter The four AES In signals from the audio uplink are wired to ISSOSTEM 1 its four AES Out signals are wired to the next ISOSTEM 2 and its four AES Out signals are wired to the system s downlink device A CAT5 crosslink interconnection of the two link ports is required for proper audio routing If connected to both link ports each ISOSTEM s supervisor handles this as a linked condition Thus one of the two devices is forced to the processing state and the other to the bypass state The bypassing ISOSTEMP is the backup device The user defines the initial processing bypass state of both devices during power up When linked the device powered up as the first is automatically the one in processing state The second device power up is automatically forced to bypass audio ISOSTEM Live Integration 9 39 ISOSTEM 9 USER MANUAL Daisy Chained Setup 6 x GPI PRESET 4 x AES OUT Example ISOSTEM 1 processes ISOSTEM 2 bypasses no alarm The alarm state overrides this situation An alarm always forces the bypass state The block diagram below presents an example of an alarm situation for ISOSTEM 1 6
22. ce stereo signal Additionally a 10 dB LFE Dolby DTS at tenuator is available Options Cut Frequency 0 Hz 234 Hz Delta Frequency 0 Hz 234 Hz Level 0 dB inf Attenuation 0 10 dB HCF Window The HCF window features a high frequency attenuator on the rear channels that allows the user to polarize the image and reinforce the attraction of the front channels Just like SUB this filter acts on the spectral envelope with a gain in amplitude and constant phase This filter applies to the internal bus at the end of the Panoramic Analyzer and Virtual Microphone Options Cut Frequency 0 Hz 20 kHz Delta Frequency 0 Hz 20 kHz Attenuation level 0 dB inf MONITORING AND BYPASS FUNCTIONS This section features solo and mute buttons for each channel as well as a monitor source selector giving access to various sig nals Also certain processing elements can be bypassed with the Functions buttons Please note that the monitoring applies directly to the L R C Sub sL and sR channels of the output matrix GUI Software Reference Y 35 ISOSTEM 9 USER MANUAL Channel Solos Mute and solo buttons are available for each output channel Monitor SURROUND on on an In SURROUND monitor mode the ISOSTEM surround outputs are monitored through the multichannel outputs Monitor STEREO In STEREO monitor mode the original stereo input signal is monitored through the multichannel outputs L
23. d and the risk of overheating is reduced significantly The high performance system handles 32 bit real time audio processing while the dynamic filtering variables are 64 bit The conversion modules calculation up and down is executed in the frequency domain with phase control AUDIO PROCESSING Sub D 25 Digital Audio 8 in x 8 out AES format AES in AESin AES in 1 L R L R L R Directs y SL sR nuu ISOSTEM features 4 digital audio inputs in AES3 format 8 channels as well as 4 digital audio outputs in AES3 format 8 channels All AES inputs are fitted with sample rate converters SRC that can simplify system inte gration considerably Flexible input and output matrices enable flexible IC routing to and from the internal audio processing modules This allows for compatibility with the various surround channel schemes used in environ ments such as TV ITU or cinema SMPTE The two main audio processing modules Panoramic Analyzer PA and Virtual Microphone VM are both independent upmixing stages using different approaches with 2 audio inputs and 6 5 audio outputs Together with the Direct module they feed an internal bus that in turn feeds the ISO module The Direct module can be fed by native multichannel sources to assure their compatibility with the stereo reference signal or as part of a setup using several stereo sources 12 Y System Overview ISOSTEM USER MANUAL The IS
24. e the auto modes also may be invoked by GPI calls when configured in GPI mode see above GUI Software Reference 23 ISOSTEM 9 USER MANUAL ADMIN TAB The Admin tab is used for administration tasks such as loading and saving presets in the hardware memory or on the computer s hard drive These tasks are performed in the upper section of the window The remaining window space is used for a detailed display that shows all parameters of the currently loaded configuration at a glance READ WRITE Read Write This preset management section is used to load presets into the GUI READ ELLE HDA io display software and to write them to a target such as the hardware s internal memory or a file on the computer s hard drive WRITE NED Loading a new preset to work with is a 2 step process First load a preset to the GUI interface Then transmit this preset to the hardware To load a preset into the GUI software e Select a source in the field behind from in the first line The follow ing options are available Single Preset File loads single preset from a file stored on your computer All Presets File loads a preset file storing all six presets from a file stored on your computer for a write action to All Presets Startup loads the preset configured for system startup Current loads the configuration currently active in the hardware Preset 1 6 loads one of the presets stored in the hardw
25. em If levels E pass a iei diei value AES inputs 2 3bothlowor Ms E anew preset will be loaded abee from the internal memory The transition between the presets is performed smoothly using crossfades In Parallel mode Auto 1 if the levels on channels L R C LFE LS and RS on AES inputs 1 2 and 3 are low the condition becomes true i e ste reo upmix preset needed otherwise it becomes false i e 5 1 downmix preset needed In Serial mode Auto 2 if the levels on channels L and R on AES in put 1 are high AND the levels on channels C LFE LS and RS on AES in puts 2 and 3 are low the condition becomes true i e stereo upmix preset needed otherwise it becomes false i e 5 1 downmix preset needed You configure the Parallel and Serial mode of channel automation by activating the corresponding checkbox in the GUI Checking Off disables channel automation The machine then monitors the corresponding chan nels as defined in the text below Condition in the GUI and calls the cor responding preset defined in the true and false column fall back defines that the device should re enter the state it had before it had entered another preset state within the channel automation handling Please note The three checkboxes Auto 1 Serial Auto 2 Parallel and Off represent also the current status of the device when being connected to the device This is important to know becaus
26. ess audio i 2 GUI will close as soon as the upload window closes log box sh OWS SOme info rmation about the pro 3 Loading may be aborted by closing the window 4 A successful upload does not yet update the device software cess details Click OK to start the transfer The progression is shown by a bar When an upload has started observe the following amater GUI Software Reference 19 ISOSTEM 9 USER MANUAL After transfer is finished the firmware upgrade is ready to be in 4 Update Boot Memory of the Device stalled to the DSP The UPDATE button is active Step 4 Update Boot Memory of the Device The boot memory of the device contains the DSP soft ware Click the UPDATE button that launches a a ed the installation of the new internal DSP software An Update dialog box tells you that if you should need to return to the previous version of the inter nal software the corresponding iub file will be necessary After finished a dialog box signals the successful update and asks you to exit and open the GUI software again Finally the last dialog box asks you to turn off the hardware unit s power New firmware boots at next power yde and to turn it on again before restarting the GUI software The new firmware version is now installed on your hardware unit 20 Y GUI Software Reference ISOSTEM USER MANUAL AUTOMATION The Automation section offers several automated operati
27. factory defaults first Please note Doing so will erase all internal user specific presets as well as the unit s startup configuration and overwrite it with the factory defaults e Inthe top left hand section of the GUI press the Admin tab Factory Heset e Inthe top right hand GUI section press the Init button below Fac tory Reset If sure confirm both confirmation request windows Now your hardware will use the factory default configuration Quick Start 9 9 ISOSTEM 9 USER MANUAL Next load a preset This is a 2 step process First load a preset to the GUI interface Then transmit this preset to the hardware Here s how e f not yet selected press the Read Write Admin tab in the top left hand Se section of the GUI RED EL M o Rn e The Read Write area used for m preset management is posi tioned directly below the tabs For our example let s select Preset 1 behind from in the first line Press the READ button The pre set is loaded to the GUI now and all parameters are displayed in the Admin window e Select Current behind to in the second line Press the WRITE button This transfers the preset settings to the hardware The trans fer is confirmed by a pop up window Additionally the front display of the unit shows the active preset number 6 LISTENING e Start your external signal source to play back some stereo audio e Switch your surround monitoring system on Starting with a
28. for this purpose The AES LED on the front panel will reflect the current sync status in the following way Constant light SOSTEM is in sync with the first clock source se lected in the Master Clock Priority parameter see Sync in Hard ware tab chapter Flashing once ISOSTEM is in sync with the second clock source selected in the Master Clock Priority parameter see Sync in Hardware tab chapter Flashing twice SOSTEM is synced by its internal clock Flashing continuously No AES signal available at AES Input 1 Configuration should be checked 16 Y Hardware ISOSTEM USER MANUAL GUI SOFTWARE REFERENCE Depending on the hardware variant the SOSTEM GUI software is organized in two or three main windows accessed by tabs in the top left corner The Hardware tab is used for setting up clock and synchronization parameters firmware updates and system auto mation while the Admin tab window contains tools for preset manage ment and factory reset Hardware SSS AR MER Sn ee ee The Expert tab only available in the SOSTEM Expert hardware ver sion features real time control of all audio processing parameters HARDWARE TAB COM The Com section is used to establish communication be tween the SOSTEMP hardware unit and the GUI software Port Name EEE Em Port Name Use this option to select your computer s serial COM port for communication If using the supplied USB to RS232
29. he envelopes in frequency Frequency smoothing options sharp medium smooth Time smoothing options none 100 ms Downmix Attenuation C to L R LFE to L R sL sR to L R The Downmix parameters for C LFE and sL sR determine the coeffi cients to be applied to the respective channels for the downmix to stereo Downmix attenuation options all O dB 1 5 dB 3 dB 6 dB inf Disable ISO if Module Muted The Disable ISO function deactivates the ISO function when Mute or Solo has been selected in one of the modules Mute and Solo do not work efficiently as long as the intermix signal is reinjected into the multichannel stem Some users might get confused with ISO reinjection over an en gaged Mute or Solo 34 Y GUI Software Reference ISOSTEM 9 USER MANUAL Channel 7 8 Out Select Channel 7 8 Out Select selects the source of the 2 in the 5 1 2 for mat This 2 stereo output on 7 8 may be LtRt LoRo or 7 1 being a 6 dB version of Ls Rs channels Options Stereo Reference 7 1 LtRt Please note The 7 1 mode does not correspond to the channel format of the same name which includes five front channels L R C CL and CR with two rear channels Sub Window The Sub window features a Bass management option for Sub LFE chan nel filter adjustment This filter acts on the spectral envelope with a gain in amplitude and constant phase It applies to the Panoramic Analyzer module and the referen
30. high volume levels may cause hearing dam age and or loss The use of hearing protection in high volume situa tions is recommended Safety Instructions 9 5 ISOSTEM 9 USER MANUAL INTRODUCTION For many years now TV technology has been developing at a rapid pace Television in HD 3D and surround is no longer merely a cinema experi ence but can also be enjoyed in the comfort of your own home The ex tremely high picture quality has also led to demands for improved sound providing the broadcasting corporations with a considerable challenge either a great deal of the material only exists in stereo and the original re cordings are no longer available or creating a new mix on Surround 5 1 would be very expensive As the consumer is no longer satisfied with ste reo or alternating sound formats what is now needed is an option for con verting the stereo information into a multichannel surround signal in real time ap a R IBOGTEM mg ISOSTEM uses complex algorithms to automatically generate a multi channel version out of a stereo source signal in real time at a very low latency of 40 ms and with perfect audio quality SOSTEM analyses the acoustic energy of a stereo signal and separates dominant sources from ambient spaces by dynamic filtering European patent office reference FR 2908586 These parts are distributed to the 5 channels and create a con vincing surround signal With SOSTEM broadcasters can produce a con
31. ic Analyzer s ability to separate direct and diffuse signal com ponents from each other They should be set carefully in order to fit the source material and user s individual application in the best possible way PA Level Step Gain This read only display shows the Panoramic Analyzer s input attenuation selected in the multifunctional area s Misc tab see Multifunctional Area Unit dB Sides This fader controls the level used to inject a mix of the stereo input signal and the Side C out level see below into the output busses L and R This parameter is a powerful tool to control the selectivity used to separate direct and diffuse signal components in the L and R front channels By sub tracting the separated signals from the original stereo signal the spatial complements of the dry sources can be added to the L and R front chan nels Unit dB Range 0 dB inf Sides Mute Solo These buttons are used to mute or solo the Sides fader signal 28 Y GUI Software Reference ISOSTEM USER MANUAL Sides C out This fader controls the level used to inject the phase reverted discrete Cen ter signal output of the Panoramic Analyzer into the output busses L and R This parameter is used to fine tune the presence of the phantom source between the L and R front channels Higher fader positions increase the removal of Center signal components from the L and R front channels Please note This function depends on the position of the S
32. ides fader see above It is also controlled by the Sides Mute and Solo buttons Unit dB Range 0 dB inf Rear This fader controls the level used to inject a mix of the stereo input signal the Rear C out level and the Rear S out level see below into the output busses LS and RS This parameter is used to control the balance between direct and diffuse signal components in the LS and RS rear channels Higher fader positions increase the spatial signal components Unit dB Range 0 dB inf Rear Mute Solo These buttons are used to mute or solo the Rear fader signal Rear Step Gain This read only display shows the gain setting for the rear channels selected in the multifunctional area s Misc tab see Multifunctional Area Unit dB Rear C out This fader controls the level used to inject the phase reverted discrete Cen ter signal output of the Panoramic Analyzer into the output busses LS and RS This parameter is used to fine tune the presence of the phantom source between the LS and RS rear channels Higher fader positions increase the removal of Center signal components from the LS and RS rear channels Please note This function depends on the position of the Rear fader see above It is also controlled by the Rear Mute and Solo buttons Unit dB Range 0 dB inf GUI Software Reference 29 ISOSTEM 9 USER MANUAL Rear S out This fader controls the level used to inject the phase reverted discre
33. ignals of the Virtual Microphone VM Unit dB Range 0 dB inf Please note On the Bus tab of the multifunctional area the individual levels of the L R C and sL sR channels can be adjusted separately 30 Y GUI Software Reference ISOSTEM 9 USER MANUAL VM Mute Solo These buttons are used to mute or solo the VM fader signal Angle This fader adjusts the opening angle of the stereo signal Its position is re flected in the VM tab of the multifunctional area by two grey lines see Multifunctional Area Unit Degrees Range 0 180 Lobes This parameter defines the polar pattern of all five virtual microphone cap sules used in the VM module A value of 0 represents omnidirectional patterns the maximum value 100 stands for figure of eights Unit Percent Range 100 0 Gap This parameter defines the center distance of all five virtual microphones Unit cm Range 72 cm 0 cm MULTIFUNCTIONAL AREA The multifunctional area in the top right hand section of the Expert tab fea tures nine view modes that are selected using sub tabs Among others they can be used to visualize parameter edits in audio processing modules such as the Panoramic Analyzer or the Virtual Microphone Direct Window The direct module connects any multichannel sources present at the audio inputs directly to the internal bus This module is particularly important for processing native multichannel programs L R This f
34. in a matrix of coefficients normalized for each channel and every frequency Oy A Qc Ok O op La i Se OQ sg Em e Ve IER j Qe os Ring SS Su Si Ly igs Ar 1023 O sr 1023 Matrix of coefficients Frequency Envelopes A document itemizing the entire calculation is available in the AES Audio Engineering Society papers library AES Paper 6548 AES Convention 119 October 2005 Appendix 9 49
35. ion is used to protect the six presets Write Protection stored in the hardware as well as the startup preset MM Preset 1 LM GIN Preset 4 C IE KE from being overwritten Just check the boxes of the TEST preset s you want to protect FACTORY RESET This function is used to reset the hardware unit to factory defaults Please note Doing so will erase all internal user specific presets as well as the unit s startup configuration and overwrite it with the factory defaults Press the Init button below Factory Reset If sure confirm both Pouce fac confirmation request windows Your hardware will now use the fac tory default configuration 26 Y GUI Software Reference ISOSTEM USER MANUAL EXPERT TAB EXPERT HARDWARE VERSION ONLY The Expert tab is used to edit the unit s audio processing parameters in real time All parameter settings on this page are directly reflected by the audio processing The Expert tab is divided into five sections e 1 Panoramic Analyzer PA e 2 Virtual Microphone VM e 3 Multifunctional area with 9 sub windows e 4 Monitoring and Bypass functions e b5 Phase ISO and Master functions PANORAMIC ANALYZER PA Functionality The Panoramic Analyzer distinguishes the parts of a signal containing mainly diffuse or direct sound by identifying the spatial energy distribution These signal elements are isolated by dynamic filtering and
36. irtual Microphone VM 30 Multifunctional Area 31 Monitoring and Bypass Tunchons ccc cece cece eeceeeceeeeeeeeeeeeeeeeeaeeaes 35 Phase ISO and Master funchons 0 eee eeececeeeeeeececeeeeeeeeeeeeeeeeeees 37 ISOSTEM Live Integration nene 38 CODE MER OR T MR 38 Single Device Audio Routing and Alarm Function 38 Daisy Chained Audio Routing and System States 39 Parallel Setup for 24 Operation esuesssuss 41 Preset Recall Synchronization ooccocccocccoccocnconcccncocnnaninncononos 42 Preset Management Synchronization aanannanennennenennennnnnnnne 42 o qc ee 43 Appendix A Interface Specification sssssss 43 CIN OR RC 43 Wido nec on 44 p 44 PGE OF T 45 Word ere Aaa 45 AES EBU CIV e E 45 Appendix B Schematic Block Dagram 46 Appendix C Factory Presets occooccoccocconcoccocnconcononncononnonononos 48 Appendix D Panoramic Analyzer Physics 49 4 Y Content ISOSTEM USER MANUAL SAFETY INSTRUCTIONS This symbol wherever it appears alerts you to the presence of uninsulated dangerous voltage inside the enclosure voltage that may be sufficient to constitute a risk of shock This symbol wherever it appears alerts you to im
37. low vol ume setting in order to protect your speakers and your ears set your desired playback level e You should hear a 5 1 surround signal now that has been generated by ISOSTEM using your stereo source e Follow the steps above to load preset 3 Compare the results Please note At this point there is no need to care about the clock syn chronization of ISOSTEM s AES input SOSTEM uses sampling rate converters SRC in all inputs if necessary to obtain proper sync However your playback system must be synced to one of the ISOSTEM s AES out puts if it does not use SRCs on its own e Switch the GUI to the Expert tab Expert model only In the low er middle section of the window there are Mute and Solo switches for each loudspeaker channel available Among others they can be useful for listening to discrete channels In the Monitor section be low switching between Surround and Stereo alternatively lets you compare the original stereo source and the 5 1 ISOSTEM out put Please note To learn more about the parameters for individual fine tuning of the upmixing process please refer to the Expert Tab chapter 10 Y Quick Start ISOSTEM 9 USER MANUAL This page is intentionally left blank Quick Start 9 11 ISOSTEM USER MANUAL SYSTEM OVERVIEW DSP TECHNOLOGY The signal processing is carried out by an energy saving Sharc Analog Devices DSP With just 3W power consumption no ventilation is neede
38. me Rate Check this box to increase latency to a value suitable for the video frame rate set below The increased latency will be reflected in the Device Laten cy display See above Video Frame Rate This parameter sets the video frame rate that the system latency should be adapted to Options 24 25 29 976 or 30 frames s Clocking Modes Use this section to set up the primary and secondary sync sources Current Master Clock Intemal 48kHz 48 D kHz to be used for system synchronization For details please also refer to Synchronization in the Hardware chapter Master Clock Priority AES nput kug C AES 1 Input Current Master Clock Word Clock AES 1 Input Intem This display shows the clock reference currently used by the hard AES 1 Input Intem e Word Clock Int ware and its sample rate Buc Master Clock Priority This parameter selects a priority chain of clock sources i e a primary secondary and fallback clock source If the attempt to synchronize to the primary source is not successful the unit will try to sync to the secondary source instead If this also fails it syncs to the internal clock as a fallback Options e AES 1 Input 1 Word Clock 2 Intern fallback e Word Clock 1 AES 1 Input 2 Intern fallback e AES 1 Input 1st Intern fallback e Word Clock 1st Intern fallback e Intern fallback Please note In order to sync to an external AES signal select the appro
39. nal AES3 audio routing device This section enables users to integrate SOSTEMP Live into studio and broadcast systems in each way mentioned above In addition information for preset and parameter synchronization in a redundant setup is given SINGLE DEVICE AUDIO ROUTING AND ALARM FUNCTION ISOSTEM Live is equipped with an internal hard wired supervisor which detects hardware software and power supply failures A detected failure results in the following immediate action e he audio routing is switched from processing to bypass i e the four AES Input signals are electrically switched to the four AES outputs without DSP interference This is the default power off state e The alarm relay output opens its contacts to signal the failure elec trically This is the default power off state 38 SOSTEMG Live Integration ISOSTEM 9 USER MANUAL Single device setup and alarm processing interaction 6 x GPI PRESET 6 x GPI PRESET 4 x AES OUT 4 x AES IN 4 x AES OUT 4 x AES IN OK status no alarm contacts closed FAILURE status alarm active contacts open Processing AES In DSP AES Out No Processing Bypass AES In AES Out In a single device setup the link port is unused DAISY CHAINED AUDIO ROUTING AND SYSTEM STATES Two ISOSTEM Live are intended to operate as a redundant backup sys tem A daisy chained topology is the basic redundant setup see schematic below It must
40. ng modes that are selected with the Mode GPI function and Channel Automation options Among others these options allow for locking the audio processing parameters to fixed values external preset switching and automated preset switching triggered by the recognition of certain audio signal types Mode The following mode options are available e Manual The unit is responding KE eee to the GUI software parameters in a heen Preset Source real time The GPI function is not Manual Activated by ava a ble e GPI The unit responds to external GPI commands at the GPI Sub D connector by loading one of the 6 presets stored in its inter nal memory Please refer to Appendix A for the GPI connector s pin out scheme Please note In GPI mode the Admin and Expert tabs are locked Additionally the GPI Manual mode changes the behavior of the startup configuration see below Admin Tab Current Values This is a status display showing in real time during a connection to a device the number of the current Preset Source and the source of activation which may be the GUI or a GPI switch GPI Function These options allow to configure the action which should take place after the corresponding GPI pin has been activated GP Function 1 m ep FER TERI ER ERR EE For each of the six GPI inputs you may choose one out of following actions e None No action to be invoked Preset 1 6
41. panels of both ISOSTEM variants feature the same set of status LEDs e AES This green LED shows the status of the incoming AES signal as well as the unit s sync state Please refer to the Synchronization chapter for more details about the various sync states e ISO Indicates that the ISO function is active see Phase ISO and Master Functions e Status This numerical display shows the number of the currently active preset e Alarm Shows the current health status of the hardware device e Process Indicates processing or bypass mode e Linked Indicates an active link to a second ISOSTEM device e Power Indicates that the unit is switched on Power Switch Use this switch to turn the unit on or off 14 Y Hardware ISOSTEM USER MANUAL REAR PANEL CONNECTORS IEC RS232 D Sub 9 GPI D Sub 15 WC In BNC AES EBU I O D Sub 25 ALARM Phoenix LINK RJ45 ALARM LINK Mains power 90 250 VAC Serial interface port for communication with ISOSTEM GUI software This is a binary control input port used to recall the six internally stored presets External switch to electrical ground initiates preset recall Word clock input 4x AES3 digital audio inputs 8 channels 4x AES3 digital audio outputs 8 channels Tascam Pinout Relay output contacts reflecting the unit s alarm state Contacts closed No alarm device fully functional Alarm LED off Contacts open Device failure Alarm
42. portant operating and maintenance instructions in the accompanying literature Read this manual CAUTION To reduce the risk of electrical shock do not remove any screws of the enclosure There are no user serviceable parts inside Refer servicing to qualified personnel only WARNING To reduce the risk of fire or electrical shock do not expose this appliance to rain or moisture s 2 To assure best performance please read this manual carefully Connect this appliance to a grounded AC outlet of 90 V to 250 V 47 Hz to 63 Hz Keep the power cord in good condition If the power cord becomes damaged discard and replace it Never isolate the ground of the AC power cord The power fuses are located on the rear panel of the appliance and may be accessed from the outside In case the fuses have to be ex changed only use fuses of the same type as labeled The power switch of the device is located on the front panel of the appliance The ON and OFF states are marked by 1 and 0 re spectively Install this unit in a well ventilated cool dry and clean place Keep it away from direct sunlight heat sources vibration dust moisture or cold In a cabinet allow about 2 5 cm of free space all around this unit for adequate ventilation The appliance must be adapted slowly to extreme temperature changes These extreme changes may cause moisture inside that can cause failure and or electrical shock Prolonged exposure to
43. priate clock source and make sure you use the AES 1 input for this pur pose 18 Y GUI Software Reference ISOSTEM USER MANUAL input Data Stream Input Data Stream er ius This display shows any valid audio data streams on the four Ee AES inputs FIRMWARE UPDATE DEVICE Use this option to update the system firmware Please follow the steps described below Before starting the procedure please make sure that you have an update file iub extension available on your computer This file is provided by your local ISOSTEM distributor or dealer in case a new firmware version is available After clicking the UPDATE DEVICE but ton the Update Device Software window 1 Open a Software File eS will lead you through the update process 2 Set File Code consisting of steps 1 4 NENNEN E ges Step 1 Open a Software File Click the RE OPEN FILE button to select the iub 4 Update Boot Memory ofthe Device update file stored on your computer The Wen Ge file path name and size will be displayed Step 2 Set file code Enter the code in order to control the file data validi ty The code is provided by your local ISOSTEM distributor or dealer to gether with the update file The LOAD button in step 3 is now active IEA Step 3 Load File to Device Click the LOAD button to start transferring the file from the GUI software to the hardware Before transfer a dia 1 The device will cease to proc
44. t The transfer is confirmed by a pop up window Please note The automation mode GPI Manual see above changes the behavior of the startup configuration In GPI mode the Startup preset is overwritten by the last called preset i e the device starts with the for merly active preset after a power cycle In Manual mode the Startup preset is not changed automatically You can define it in the Admin tab see above GUI Software Reference 25 ISOSTEM 9 USER MANUAL FILE BACKUP Using the File selection to be the target of a write process presets can easily be transferred to a computer The files created in this way carry the ips extension This is an easy way of archiving presets or transferring them from one unit to the next Please note Preset files do not contain hardware configuration settings such as the latency synchronization or the preferred sync source Such parameters usually refer to the global system environment rather than spe cific audio processing tasks Loading a File After selecting File in the from menu first line the standard file opening dialog box of your computer s operation system lets you select an ips file to be loaded into the GUI Please refer to Appendix C Factory Presets for a brief overview of all facto ry presets integrated in the device On the supplied ISOSTEM installation disc these presets are also available as a backup WRITE PROTECTION This sect
45. te L and R front signal out puts of the Panoramic Analyzer into the output bus ses LS and RS This parameter is used to fine tune the diffuse sig nal components of the front channels L and R in relation to the direct sound in the LS and RS rear channels Unit dB Range 0 dB inf Please note This function depends on the position of the Rear fader see above It is also controlled by the Rear Mute and Solo buttons Please note For in depth signal flow details please also refer to the block diagram in Appendix B VIRTUAL MICROPHONE VM Functionality The Virtual Microphone is another tool for surround sound creation that can be used independently or in combination with the Panoramic Analyzer Based on an acoustic model the stereo source information is translated to a virtual 5 0 microphone array you may think of it as if a 5 0 microphone setup would be placed in front of a stereo speaker system Cardioid microphone capsules are modeled with adjustable spacing and directivity curves The signals feed each of the output busses directly The VM module does not deliver a Sub LFE channel signal It may be provided by the Sub module in stead see Multifunctional area Please note While editing the Virtual Microphone s parameters it is a good idea to watch its graphic representation in the VM tab of the multi functional area VM Level This fader adjusts the direct output levels for all five discrete output s
46. to the stereo signal In order to be able to better integrate the intermix within the multichannel stem the ISO function separates the elements M half sum and S half difference of the Intermix Element M is split between channels C and L R Element S is split between the L R pair and the SL SR pair M Unit Percent Range Center L R S Unit Percent Range L R sL sR Master Level This fader is used to attenuate the master output level of all channels Unit dB Range 0 dB inf GUI Software Reference 37 ISOSTEM USER MANUAL ISOSTEM LIVE INTEGRATION SCOPE ISOSTEM Live is intended for integration into professional studio and broadcast environments in three different ways e Single device e Two daisy chained devices e wo devices in parallel In single device operation no functional redundancy is given In case of a failure each ISOSTEM Live has the means for non disruptive quadruple AES3 bypassing though of course it will no longer be able to process the audio streams Two devices may be integrated daisy chained or in parallel Both setups offer functional redundancy Though a daisy chained integration has no need for further failure management devices it offers no non disruptive device exchange in case of a required service procedure For 24 7 operation a parallel SOSTEMP Live integration is recommended Failed devices may be exchanged non disruptively This setup requires an exter
47. tputs of the PA and VM modules used for upmixing These level adjustments can be useful to model the shape of a conversion less diverged strong center or more square quadrophonic Available faders for the PA module e L R e C e Sub LFE e sL sR RS LS GUI Software Reference 9 33 ISOSTEM 9 USER MANUAL Available faders for the VM module e L R e C e SL sR RS LS Misc Window The Misc Window features several special signal pro cessing functions such as attenuation settings or signal smoothing options PA Step Gains Input Attenuator The PA input attenuator avoids any risk of C channel satu ration during an up conversion If a stereo signal is made from an identical right left signal with its peak level normalized OdBFS the total quantity of energy cannot be held in only one C channel without over loading The PA input attenuator prevents this risk Options O dB 3 dB 6 dB PA Step Gains Rear Gain The gain on the rear PA channels applies to the Rear complement chan nels This additional gain aims to reinforce the envelopment and to highlight the presence of the multichannel format Options 0 dB 6 dB 12 dB PA Signal Smoothing Frequency Time Smoothing The temporal and frequency smoothing apply to the spectral envelopes of the PA module filters The temporal smoothing is a weighted averaging of the envelopes in time while the frequency smoothing is a weighted averag ing of t
48. x parameter presets remotely A preset is triggered by pulling the dedicated preset pin to the device s electrical ground GND The GPI inputs are level sensed Thus a momentary push button has to be pressed to close its contacts for a very brief period of time 1sec The preset is called during state transition from open to closed i e GND Thus a momentary push button switch is capable of calling a preset 7 1 Call Preset 1 Call Preset 2 Call Preset 3 15 Call Preset 5 3 Call Preset 6 2 Call Preset 4 Pin and function assignment of GPI port dE OOOOO0O00 View of female SUB D 15 pin Schematic diagram of push GPI interface on rear side button connection Appendix Y 43 ISOSTEM 9 USER MANUAL LINK PORT The link port is used to connect two ISOSTEM Live units in redundant mode In a daisy chained setup a standard CAT5 cross link cable interconnection is mandatory for automatic processing bypass handshake and backup switchover In a redundant parallel setup a device interconnection is not mandatory Future software extensions will enable the link port s integrated data inter face for automatic parameter preset synchronization 1 EA View of RJ45 link port from rear side of device 8 Required CAT5 cross link pin assignment Pin assignment of Link Port and specification of cross link cable RS232 The RS232 interface enables a PC connection for running the
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