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digital audio 
modular 
processing system

 

C8000

 

Dolby Digital / Digtal plus / Pulse (AAC) encoder

 

C8612

 

13/20

 

Channel Mode 

min. datarate 

@transcode 

1/0  

32 kbps  

64 kbps  

2/0  

40 kbps  

64 kbps  

3/0  

48 kbps  

192 kbps  

2/1  

48 kbps  

192 kbps  

3/1  

64 kbps  

192 kbps  

2/2  

64 kbps  

192 kbps  

3/2 

72 kbps  

192 kbps  

7.1 

448 kbps 

-- 

 

32 kbps  

320 kbps 

40 kbps 

336 kbps 

48 kbps  

352 kbps 

56 kbps 

368 kbps 

64 kbps  

384 kbps 

72 kbps 

400 kbps 

80 kbps  

448 kbps* 

88 kbps 

512 kbps* 

96 kbps  

576 kbps* 

104 kbps 

704 kbps* 

112 kbps 

768 kbps* 

120 kbps 

832 kbps 

128 kbps 

896 kbps 

144 kbps 

960 kbps 

160 kbps 

1024 kbps 

176 kbps 

1088 kbps 

192 kbps 

1152 kbps 

200 kbps 

1216 kbps 

216 kbps 

1280 kbps 

224kbps 

1344 kbps 

232 kbps 

1408 kbps 

240 kbps 

1472 kbps 

248 kbps 

1532 kbps 

256 kbps 

Auto 192 

272 kbps 

Auto 200 

288 kbps 

Auto 224 

304 kbps 

Auto 256 

 

 
Dolby Digital plus data rates : 

Dolby Digital plus AUTO data rates :   

 

 

 

 

 

 

 

 

 

Dolby Digital plus minimum data rates : 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

acmod 

Auto 192 

Auto 200 

Auto 224 

Auto 256 

1/0 

80 kbps 

80 kbps 

96 kbps 

96 kbps 

2/0 

96 kbps 

96 kbps 

112 kbps 

128 kbps 

2/1 

144 kbps 

144 kbps 

144 kbps 

144 kbps 

2/2 

192 kbps 

192 kbps 

192 kbps 

192 kbps 

3/0 

144 kbps 

144 kbps 

144 kbps 

144 kbps 

3/1 

192 kbps 

192 kbps 

192 kbps 

192 kbps 

3/2 

192 kbps 

200 kbps 

224 kbps 

256 kbps 

 

Содержание C8612

Страница 1: ... bus as well as alternately on BNC monitor output Remote control web interface via C8702 frame controller block diagram C8612 Carrier Board 9 pin RDD6 Metadata SYNC System sync Inertface Module Controller Encoder 1 L R CAN BUS Interface BACK PLANE AUDIO INTERFACE 32 Bus Lines 2Ch or 8 Ch mux mode AUDIO ROUTER METADATA EXTRACTOR GPI O Handling Metadata Management Frame Controller Commmunication Pre...

Страница 2: ...at Ambient 10ºC to 40ºC Humidity 90 non condensing Dolby metadata The Dolby Laboratories Inc have introduced the data about the audio data the Dolby metadata which are intended to travel along with the multi channel bit stream from acquisition point of audio recording to delivery Dolby Digital decoder at home either part of the TV Set Top Box or the home theater system Those metadata may control t...

Страница 3: ...known bus configuration you must set BUS EN OFF before inserting the module into a C8000 frame Otherwise you are in risk to disturb other channels of the frame Pressing the INIT button during power up will initialize the module parameters to factory default values status LEDs FAIL flashing red hardware problem on the bottom right PCB edge STATUS green OK red bad flashing under GUI control DOLBY D ...

Страница 4: ...ations parameters and functions via a web browser See also C8702 Frame Controller OVERVIEW The above example shows a C8612 Name AC3 Encoder in a typically processing chain Clicking on the spanner tool within the module graphics of the C8612 will open the pages of that module If you click on the switch tool you will get the page for changing Presets only ...

Страница 5: ...5 Meta Preset 16 Reversion Preset will load one of the 16 available Presets from the NV memory of the module Select the preset of your choice and press LOAD NOW Encoders loaded Here you can see which encoder is affected by the actually from preset loaded preset Save as 1 16 Here you can select a Preset Number memory location Name You can give each preset a 16 character name The actual parameters w...

Страница 6: ...ignal routing Load 33 Routing reset 1 40 Routing Preset 8 Will load one of the 8 available routing presets from the NV memory of the module Select the preset of your choice and press LOAD NOW Save as 33 40 Here you can select a Preset Number memory location Name You can give each preset a 16 character name The actual parameters will be stored if you press SAVE NOW Preset Clipboard You can copy the...

Страница 7: ...roller Firmware version of the module controller Dolby Firmware Version Version of the Dolby CAT561 OEM module Restart Module Pressing RESTART will warm start the C8612 Initialize and Restore Pressing INITIALIZE will initialize the C8612 to factory Factory Defaults defaults and will warm start the module afterwards Backup Settings and Pressing BACKUP will download all settings including the Preset...

Страница 8: ...mod 3 2L 1 0 L R DOLBY CAT561 OEM Board Firmware 2 4 0 3 and higher ENCODER CONFIGURATION two independent encoders Encoder 2 2 0 acmod 2 0 or 1 0 C LFE Ls Rs 2L 2R Metadata Multiplexer Consumer Metadata Metadata Multiplexer Consumer Metadata Program 1 Program 2 D D D D plus AAC HE AAC v1 v2 D D D D plus AAC HE AAC v1 v2 Encoder 1 5 1 acmod 3 2L 1 0 L R DOLBY CAT561 OEM Board Firmware 2 4 0 3 and h...

Страница 9: ... stream may be transcoded directly to a D D plus stream The metadata may be modified for the output stream Encoder 1 5 1 acmod 3 2L 1 0 L R DOLBY CAT561 OEM Board Firmware 2 4 0 3 and higher ENCODER CONFIGURATION two associated encoders warbletone control single stream PID Encoder 2 2 0 acmod 2 0 or 1 0 Warbleton decoder C LFE Ls Rs Warbletone Program 1 Program 2 D D plus mixing enable Stream Mult...

Страница 10: ...representation of the two encoders used by the C8612 module To C8000 System Bus S1 S32 OFF The two encoder outputs may be assigned to C8k busses as well as alternately to the external BNC monitor output Channel Status Professional Consumer The AES channel status for the encoded streams my be switched from Professional to Consumer format Enable Bus Driver You may turn off all bus drivers tri state ...

Страница 11: ... For inputs connected to unused busses this detection should be turned off to prevent from unwanted SNMP traps Encoder Parameter Due to the different functions available for different encoding formats the accessible parameters may differ widely depending on the encoder mode Encoder Mode Dolby Digital Dolby Digital HE AAC v1 2 AAC Bitstream Packing Format ADTS MPEG 2 ADTS MPEG 4 LATM LOAS impl SBR ...

Страница 12: ...kbps 3 2 224 kbps If both encoders are configured for 5 1 the graphic changes to represent the signal flow Data Rate kbps depending on the encoder mode Dolby Digital 32 AUTO 448 Dolby Digital plus 32 AUTO 256 Dolby pulse 28 HE AAC v2 AUTO the respective data rates for the various AUTO modes depend on the channel mode AKA acmod Dolby Digital data rates Dolby Digital AUTO data rates Dolby Digital mi...

Страница 13: ...bps 128 kbps 896 kbps 144 kbps 960 kbps 160 kbps 1024 kbps 176 kbps 1088 kbps 192 kbps 1152 kbps 200 kbps 1216 kbps 216 kbps 1280 kbps 224kbps 1344 kbps 232 kbps 1408 kbps 240 kbps 1472 kbps 248 kbps 1532 kbps 256 kbps Auto 192 272 kbps Auto 200 288 kbps Auto 224 304 kbps Auto 256 Dolby Digital plus data rates Dolby Digital plus AUTO data rates Dolby Digital plus minimum data rates acmod Auto 192 ...

Страница 14: ...uto 88 kbps 304 kbps HE AAC v1 Auto 96 kbps 320 kbps HE AAC v1 Auto 100 kbp 350 kbps HE AAC v2 Auto 112 kbp 384 kbps HE AAC v2 Auto 128 kbp 400 kbps HE AAC v2 Auto 144 kbps 448 kbps HE AAC v2 Auto 156 kbps 512 kbps acmod AAC HE AAC v1 HE AAC v2 min max min max min max 1 0 24 kbps 288 kbps 24 kbps 64 kbps 24 kbps 64 kbps 2 0 32 kbps 576 kbps 64 kbps 128 kbps 48 kbps 48 kbps 2 1 48 kbps 800 kbps 44 ...

Страница 15: ...r 2 is using program 2 Metadata Reversion Mode last used preset Metadata Reversion Preset 16 Above you have seen the common parameters for all encoding modes If you turn on Dolby Digital plus or the various encoding modes for Dolby pulse AAC modes the available encoder settings will be extended by the ones described below acmod 1 0 2 0 2 1 2 2 3 0 3 1 3 2 GUI label AAC Auto 56 256 56 96 156 200 15...

Страница 16: ...f on You may turn the auto mixing off and on here Trigger Level dBFS 0 95 The ducking circuit measures the level of the voice over input signal Here you define the detection level that will trigger the ducker Trigger Delay Time ms 0 4992 The time it takes from the moment the ducker is triggered to the moment the ducker begins to reduce the external program level the main audio program Trigger Hold...

Страница 17: ...d days of analog stereo transmission the left channel carried the main program converted to mono and the right channel the AD mono mix When digital TV showed up and provided 4 audio tracks for transmission both programs have been transmitted in stereo Everybody will understand that this eats up a lot of precious bandwidth Today we are able to do the receiver mix and it needs much less bandwidth to...

Страница 18: ...encoder C8612 18 20 METADATA ENC 1 Shows the set of metadata which are relevant for the first encoder Above you see an example of a set of metadata which are coming from the bus They are partially overwritten Below the remaining metadata of the expert area if you scroll down the page ...

Страница 19: ...e values at any time If the source is Bus Preset you may partially overwrite it as long as there are valid metadata at the input If there are no valid metadata at the input the module enters the Reversion Mode For the reversion preset such overwrite checkboxes will not be displayed And a hint is given If you switch Reversion Mode to last used you may load any preset and you will get the check boxe...

Страница 20: ...PI O module C8817 it will put an associated number on the CAN bus see C8817 manual for details Each module in a frame is permanently listening for such numbers and compares them with above settings You can also assign GPO numbers which will indicate the respective action E g if a Preset x is loaded the C8612 puts the associated GPO number on the CAN bus The GPI O module permanently listens for suc...

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