background image

 

 

digital audio 
modular 
processing system

 

C8000

 

4/8/16 channels DSP with SDI & system-bus I/O 

C8492(B)

 

   

page

  8/30

 

 

The C8492 has 3 banks of Presets

DSP /

 

Routing

 

SDI / Failover/Upmix

  

The status window on the left hand side shows the names of the active presets. The word “modified” 
will appear in line with the preset name if any preset parameter was changed since loading this preset. 

 

DSP 

Is dedicated to audio processing (Leveler, Compressor / Limiter / 
Expander / Fail Over / Upmix). 

 

Load 

Select a preset by name and press <LOAD>. 

 

Loaded from preset 

The soft LEDs show the channels which will be controlled by the 

 

active preset. The number of soft LEDs depends on the program 
configuration. E.g. channels 1-6 are represented by one soft LED 
because they belong to a 5.1 program while 7/8 represent a stereo 
program as well as 9/10 and 11/12.  Channels 13, 14, 15, 16 
belong to mono programs whereas channel 15, 16 are not part of 
the preset currently loaded. 

 

 

 

Here another example where channels 15 and 16 are not part of 
the actual loaded preset: 

 

 

 

 

 
Save as # 

Select a preset NV memory number. 

 

Name 

Assign the preset a name (up to 16 digits). 

 

and press <SAVE>. 

 

Channels stored 

The check boxes define which channels will be stored when you 

in presets 

save a preset. The number of check boxes depends on the 
program configuration.  
Here an example where DSP1 (Ch 1 – 8) is set for 5.1 + 2 
operating mode and DSP 2 (Ch 9 – 16) is set for 4 x 2 operating 
mode. Ch 9/10 and 11/12 are linked for stereo operation and 
13, 14, 15, 16 are not linked (mono mode). The parameters of 
channels 15 and 16 will not be stored: 

 

 

 
Routing/SDI  

controls the SDI Embedder / De-Embdder including delays and the 
bus routing if the (B) option is activated. 

 

Load 

Select a preset by name and press <LOAD>

 

 

 

 

 

The soft LEDs show which part (SDI and / or Input Bus Routin) is 
affected by the currently loaded preset. 

Содержание C8492

Страница 1: ...nd processing 5 1 Level Magic Automatic Upmix from stereo or mono Surround fail over via Upmix Downmix C8492B with C8000 system bus access 32 channels bus access 2 or 8 ch mux Metadata routing Metadat...

Страница 2: ...and de embedding complies with SMPTE 299M 3G HD or SMPTE 272M AC SD Metadata embedding and de embedding complies with SMPTE 2020 2 Video Data Rate 2970 296Mbps 3G 1485 1483 5Mbps HD 270Mbps SD Video F...

Страница 3: ...Dimension 3RU 4HP 160mm depth DIN41612 backplane connector Environmental Operating temperature 0 40 C Non operating 20 70 C Humidity 90 non condensing General Features Power fail relay bypass may be...

Страница 4: ...and place the switch back into position BUS EN ON to activate this setting for the next power up s 2 H CAN OFF CAN bus speed 256kBit s ON CAN bus speed 1Mbit s Important Note For a limited number of...

Страница 5: ...other c8k modules to form highly complex signal chains The variations of the C8492 platform range from C8492 4 four channel SDI I O processor to C8492 16S 16ch SDI I O processor with surround option...

Страница 6: ...LED green if Rx locked yellow if Rx locked async audio if Rx unlocked Always ON Last Valid red if Rx unlocked TG OFF or TG AUTO if TG Always ON None SYNC MASTER appears if the SW1 5 is set to ON BYPA...

Страница 7: ...access MODE 8492 if STATUS red at least one program active no SDI relay bypass all programs bypass or SDI relay bypass never never MODE 8492 B if STATUS red at least one program active no SDI relay b...

Страница 8: ...and 11 12 Channels 13 14 15 16 belong to mono programs whereas channel 15 16 are not part of the preset currently loaded Here another example where channels 15 and 16 are not part of the actual loade...

Страница 9: ...ge the parameters for one 2ch fail over without changing the parameters for another one Save as Select a preset NV memory number Name Assign the preset a name up to 16 digits and press SAVE Processing...

Страница 10: ...he module undergoes revisions where parameters may be added while others become obsolete The parameter version indicates it Important Note It is mandatory to initialize the module to factory defaults...

Страница 11: ...of all presets into an XML file You may store such file on a PC Restore Settings and You may browse a matching XML file from a PC Presets from File Pressing RESTORE will overwrite all active paramete...

Страница 12: ...ternately you may select a signal pair to the SDI embedder see EMBED pane for reference Enable Input Bus ON OFF Error Detection The serial audio data from the frame bus can be monitored for proper pos...

Страница 13: ...ietary technology from Junger I e you can not interconnect legacy Dolby modules with the C8492 B for metadata transport We recommend using the successor platform C862x C8621 Dolby Decoder C8631 Dolby...

Страница 14: ...program configuration of the DSPs Below an example where DSP 1 is configured for 5 1 2 whereas DSP 2 is configured for 4 x 2 program processing SDI Bypass Off On You may bypass the audio de embedder...

Страница 15: ...f the module is frequently taken out of service Alternative Input Due to the fact that the DSP is fed in 2Ch mode and in case of Channel Allocation surround operation it is possible to select between...

Страница 16: ...yzz pdf which you may download from our web site Operating Mode 5 1 2 4 x 2 defines the number of audio channels which are used for one audio program All relevant processing blocks will be configured...

Страница 17: ...nsient Processor as well Processing Profile live speech pop classic Loudness Target dBFS Level mode 0 50 LKFS ITU mode 0 50 LUFS EBU mode 0 50 Time s min h 10 20 40 sec 1 2 5 10 20 40 min 1 2 h Max Ga...

Страница 18: ...ode to let non audio signals pass through without the DSP processing to maintain data structure for non audio signals Expert show don t show The expert mode offers the possibility for manual intervent...

Страница 19: ...ilover A Mode Primary Secondary AUTO Selection between both inputs and the auto mode Dual Mono OFF AUTO If the fail over input is fed by a dual mono signal the circuit may automatically copy the oppos...

Страница 20: ...is selected The example above shows a condition where the LFE is not linked to the other surround channels and may be controlled independently The remaining two channels may be used for an independent...

Страница 21: ...ix algorithm the upmix block has a surround detector that will decide if an input surround signal has disappeared under certain conditions Fail Over C Upmix This can be used to provide a two stage fai...

Страница 22: ...y FIX connected to the surround input or the upmix output but it may also perform an AUTO switch over in case the surround input fails Detection Center Surround Center or Surround Signal loss Here you...

Страница 23: ...reate spectacular effects Processing Time ms 3 100 The processing time has great influence on the quality of the upmix process but of course alters the latency of the audio signal It is highly recomme...

Страница 24: ...sing the Effect Gate function the system interactively processes the subwoofer signal and generates a signal that comes very close to a real LFE signal without creating permanent rumble and bass excit...

Страница 25: ...ignals from the 16 de embedded channels to up to 16 processing channels Important Note The number of processing channels may be different It depends on the license that is activated for the module A s...

Страница 26: ...x is involved or for other purposes you can apply up to 8 frames of video dely The amount of time depends on the video standard Generate New SDI ON OFF Audio Structure If you need to replace the struc...

Страница 27: ...y 0 340 ms Before the signals are embedded you may engage a delay per mono channel Silence Mutes the respective audio channel at the embedder side Transparent ON OFF Status Bits You can decide whether...

Страница 28: ...ode ALWAYS ON you may select one of the standards to be used For the AUTO Input loss mode you may additionally decide between Last Valid or None Last Valid The generator uses the last seen input forma...

Страница 29: ...external GPO device GPIs are useful if you want to recall settings remotely e g via presets The C8k frame can handle 127 different virtual system GPI numbers You must assign a unique number to the re...

Страница 30: ...preset is loaded and if you Preset modified change parameters which are related to that preset the word modified will be displayed in line with the preset name in the status window In this case you ma...

Отзывы: