Junger Audio C8621 User Manual
digital audio
modular
C8000
processing system
Dolby® E / D / D plus decoder
Features:
• Dolby® D / D+ / E decoding
• Supports Audio Description
• Pro Logic II decoding and encoding
• Metadata generator
• RDDD-6 metadata output
• Unbalanced AES input for Dolby® encoded signals
• Automatic format detection (Dolby® D / D+ / E / PCM)
• Automatic PCM pass through
• Unique Dolby® subset metadata transport (via AES USER Bit)
• 2Ch Delay for PCM audio and / or metadata
• Program monitoring down mix output
Block diagram:
C8621
BACK PLANE audio interface
32 bus Lines (I/O, 2/ 8 Ch mux)
Audio router / Metadata – extractor / – inserter
IN (encoded)
8 Ch
OUT (downmix)
DOLBY® CAT1100 OEM Board
Ch 1/2
Ch 3/4
Ch 5/6
Ch 7/8
C8621 Carrier Board
SYNC
System sync
inertface
Audio
Dolby E
Dolby D
Dolby D+
decoder
Delay
Ch 1/2
Ch 3/4
Ch 5/6
Ch 7/8
Downmix
10 Ch
CAN-BUS
interface
MODULE CONTROLLER
Frame Controller
Preset
management
GPI/O
handling
Metadata
processor
Metadata
generator
Front Panel
status display
Metadata out
commmunication
STATUS
LED
DECODING
LED
METADATA
I/O
C8621_manual_EN_150624.doc
19
digital audio
modular
C8000
processing system
Dolby® E / D / D plus decoder
Technical data:
Standards Decoder for compressed multichannel audio supporting proprietary Dolby®
formats.
Audio Formats PCM (24bits)
Dolby® Pro Logic II
Dolby® E (16/20 bits, video frame rates: 23.975, 24, 25, 29.97, 30fps)
Dolby® D
Dolby® D+ (Audio Description supported)
Audio Channels 8 inputs (2 compressed or up to 8 PCM)
12 outputs (8 decoded audio + 2 downmix + 2 delayed)
Channel Modes up to 7.1
Audio Sample Rate 48kHz
Audio Delay 0 … 340ms for 2 channels, user settable and routable
C8621
AES/EBU Input
(External)
AES/EBU Output
(External)
Metadata Output
(External)
Decoding Latency
Relevant specifications comply with AES3-X-2009, IEC 60985 and
AES11-2009
2 channels (1 stereo input), BNC connector
24bits, PCM or compressed audio, decoder input
Impedance 75Ohm
Input level 0.3 … 5Vpp @ 75Ohm single-ended
Relevant specifications comply with AES3-X-2009, IEC 60985 and
AES11-2009
2 channels (1 stereo output), BNC connector
24bits, PCM audio, downmix / Pro Logic II, decoder output
Impedance 75Ohm
Output voltage 1Vpp (typ.) @ 75Ohm single-ended
Relevant specifications comply with SMPTE RDD6-2008 (Dolby®
Metadata).
Connector type D-Sub9 connector female
Output conditions 3Vpp (typ.) @ 110Ohm differential, RS485,
115kbaud
Dolby E 1 video frame, depending on signal
Dolby D 64...67ms (nom.), depending on mode
Dolby D+ 64...67ms (nom.), depending on mode
PCM 20ms … 1 video frame, depending on mode
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19
digital audio
modular
C8000
processing system
Dolby® E / D / D plus decoder
Power Supply 5Vdc (4.75 … 5.25V), max. 800mA
Dimension 3RU, 4HP, 160mm depth (DIN41612 backplane connector)
Environmental Operating temperature 0 … 40ºC,
Non-operating -20 … 70ºC,
Humidity < 90%, non-condensing
General Features
Metadata output pin assignment (D-Sub9 female):
• Decoding of compressed multichannel audio up to 7.1
• Decoder and encoder for Dolby® Pro Logic II coded / downmixed
audio
• Auxiliary delay path (stereo) to compensate decoder latency
• Metadata extraction from encoded audio
• Metadata generator to generate or alter Dolby® metadata
• Audio Description supported
C8621
Pin Function
1 GND
2 TX13 TX2+
4 GND
5
6 GND
7 TX1+
8 TX29 GND
Shell GND
(TX1 and TX2 carry the
same signal)
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19
digital audio
modular
processing system
Dolby® E / D / D plus decoder
Installation:
ADDRESS
SW1
ON DIP
C8000
ID +16
1 2 3 4
BUS-EN
INIT
C8621
BDS
GND
BOOT
FAIL
Set the ADDRESS rotary encoder to an address, which is not in use by another module
of a C8000 frame (for details regarding CAN addressing, see C8k system manual).
BUS-EN = OFF will disable the bus driver circuits on power up
SW-1B = not used, must be OFF
SW-1C = not used, must be OFF
ID +16 = ON enables the CAN “+16” address scheme to handle up to 32 modules
Important Note! If the module has an unknown bus configuration, you must set BUS-EN=OFF, before
inserting the module into a C8000 frame. Otherwise you risk disturbing other channels of the frame.
When you press the INIT button during power up, it will initialize the module parameters to factory
default values.
Status LEDs:
On the front panel are 3 status LEDs:
STATUS green = OK
red = bad
flashing = module is in focus of the frame controller (under GUI control)
Decoding green = the decoder reads a proper Dolby encoded signal
off = no Dolby encoded signal is present
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19
digital audio
modular
C8000
processing system
Dolby® E / D / D plus decoder
Remote configuration via web interface:
OVERVIEW:
C8621
Clicking on the spanner tool within the module graphics of the C8621 will open the pages of that
module.
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19
digital audio
modular
processing system
Dolby® E / D / D plus decoder
PRESETS
C8000
C8621
Important Note! The module may be controlled in ON AIR mode I.e. all settings have immediate affect.
While in OFF AIR mode you may prepare presets without affecting the current operation.
In this case online functions like preset clip board are not available.
If you hover with the mouse over
that switch in OFF AIR mode the hint:
"Processing is active, but settings are
offline" will be displayed.
This pop-up appeaers when you switch
back to ON AIR mode.
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