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digital audio
modular
processing system
Dolby Digital / Digtal plus / Pulse (AAC) encoder
features
• Dolby Digital (AC3), Dolby Digital plus, HE-AAC, AAC encoder(s)
• Two independent (5.1 and 2.0) encoders
• Supports associated services (audio description incl. BBC "Warble Tone" technology)
• 5.1 transcoding from Dolby Digital (AC3) to Dolby Digital plus
• Stream multiplexing for single PID applications
• RS485 – RDD6 - metadata input
• 16 Metadata presets
• 16 Setup presets
• 8 bus routing presets
• Encoded output available on internal bus as well as alternately on BNC monitor output
• Remote control (web interface) via C8702 frame controller
block diagram
BACK PLANE AUDIO INTERFACE
32 Bus Lines (2Ch or 8 Ch mux mode)
AUDIO ROUTER /
GENERAL
Configuration for two independent encoders
Encoder 1
L / R
C / LFE
Ls / Rs
Encoder 2
L / R
DOLBY® CAT561
OEM Board (Firmware 2.4.0.3 and higher)
C8612
Carrier Board
C8000
METADATA EXTRACTOR
Metadata Multiplexer
Consumer Metadata
Metadata Multiplexer
Consumer Metadata
SYNC
CAN-BUS
System sync
Interface
Inertface
Module Controller
Frame Controller
Preset
GPI/O
Metadata
OEM Board
Front Panel
C8612
Commmunication
Management
Handling
Management
Control
Status Display
STATUS
LEDs
BNC
Output
AES3id
9-pin
RDD6 Metadata
1/20
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Summary of Contents for junger C8612
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Page 1: Block Diagram
C8000 modular processing system C8612 Dolby Digital / Digtal plus / Pulse (AAC) encoder features • Dolby Digital (AC3), Dolby Digital plus, HE-AAC, AAC encoder(s) • Two independent (5.1 and 2.0) encoders • Supports associated services (audio description incl. BBC "Warble Tone" technology) •... -
Page 2: Technical Specifications
C8000 modular processing system C8612 Dolby Digital / Digtal plus / Pulse (AAC) encoder technical specifications Monitor output : connector impedance 75Ω signal level standard AES 3, SMPTE 276M unbalanced data format 16, 20, 24bit sample rate 48kHz... -
Page 3: Installation
C8000 modular processing system C8612 Dolby Digital / Digtal plus / Pulse (AAC) encoder installation INIT BOOT ADDR BUS-EN SW-1B SW-1C SW-1D FAIL Set the CAN ADDR rotary encoder to an address, which is not in use by an other module of a C8000 frame (for details regarding CAN addressing, see C8000 system manual). -
Page 4: Web Browser Based Configuration
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. - Page 5 C8000 modular processing system C8612 Dolby Digital / Digtal plus / Pulse (AAC) encoder PRESETS Because this device has two independent encoders, the Dolby metadata and setup presets may be assigned to one or both encoders if necessary.
- Page 6 Simply press <COPY TO CLIPBOARD> and the phrase : "[c8612 "device name"] <PASTE>" will appear. Now you can use the <PASTE> soft button on other C8012 modules within this frame to paste these presets into the modules NV memory.
- Page 7 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>...
- Page 8 C8000 modular processing system C8612 Dolby Digital / Digtal plus / Pulse (AAC) encoder SETUP / ROUTING : Setup of the module and the Bus routing The Dolby OEM module CAT561 has 8 physical PCM audio inputs and may be configured...
- Page 9 This saves a lot of bandwidth for transmission. Mixing information are now transmitted via metadata. The C8612 can translate the Warble Ton track into mixing metadata. This solution allows to broadcast existing AD enabled content from stock : ENCODER CONFIGURATION two associated encoders –...
- Page 10 An additional gain stage is available here to align the level prior to encoding. Encoder 1 / Encoder 2 Graphical 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.
- Page 11 C8000 modular processing system C8612 Dolby Digital / Digtal plus / Pulse (AAC) encoder The Error Detection can be turned Off and On for each input via check boxes and the entire module by radio buttons. You will see the status on the left hand side “Input Bus Status”.
- Page 12 C8000 modular processing system C8612 Dolby Digital / Digtal plus / Pulse (AAC) encoder 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 …...
- Page 13 C8000 modular processing system C8612 Dolby Digital / Digtal plus / Pulse (AAC) encoder Dolby Digital plus data rates : Dolby Digital plus AUTO data rates : acmod Auto 200 Auto 224 Auto 256 Auto 192 32 kbps...
- Page 14 C8000 modular processing system C8612 Dolby Digital / Digtal plus / Pulse (AAC) encoder Dolby pulse data rates : 28 kbps 160 kbps 576 kbps 30 kbps 176 kbps 640 kbps 32 kbps 192 kbps 704 kbps 36 kbps...
- Page 15 C8000 modular processing system C8612 Dolby Digital / Digtal plus / Pulse (AAC) encoder Dolby pulse AUTO data rates : acmod: GUI label AAC Auto 56/256 AAC Auto 64/320 AAC Auto 128/384A AAC Auto 128/384B AAC Auto 128/512 HE‐AAC v1 Auto 36/128...
- Page 16 Here you define the level of the main program for the receiver mix. Auto Mixing Set of parameters used by the decoder to control the auto mix. The C8612 supports the ducking mode. I.e. you can set the parameters for the ducking circuit at the receiver end. Auto Voice Over Mode [off, on] You may turn the auto mixing off and on here.
- Page 17 Dolby Digital plus encoded stereo and audio descriptive channel. In this case the existing Warble Tone content can still be used. The C8612 simply decodes the Warble track and translates this into mixing meta data.
- Page 18 C8000 modular processing system C8612 Dolby Digital / Digtal plus / Pulse (AAC) encoder 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.
- Page 19 C8000 modular processing system C8612 Dolby Digital / Digtal plus / Pulse (AAC) encoder METADATA ENC 2 : Shows the set of metadata which are relevant for the second encoder. The example below is for "Metadata Source = Preset" : If the Metadata Source is "Preset"...
- Page 20 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 such numbers. If it reads such number it will engage the respective GPO (see C8817 manual for details).
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