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B.1.2.11
Supported Audio Bit Rates
Table B.12 Supported Audio Data Bit Rates (MPEG-2)
Mono (kbps)
32
48
56
64
80
96
112
128
160
192
B.1.2.12
Digital Audio Outputs
Digital audio outputs comply with E1A-4221 and have a max. data rate of
3.072 Mbps.
Digital audio is output on two 9-way, D-type and four BNC connectors.
Audio output is balanced 2 – 7 Volts.
B.1.3
Audio Alignment Levels
In broadcasting a signal coding level is recommended so that digital/analog audio
signals can easily be exchanged between equipment. Two recommendations are
applicable:
•
•
1
EIA-422-A-1978: Electrical characteristics of balanced voltage digital interface circuits.
EN/LZT 790 0005 R7A
Stereo (kbps)
64
96
112
128
160
192
224
256
320
384
SMPTE RP155 Reference Level for Digital Audio Systems. For professional
equipment the SMPTE Alignment Level specifies that a digital signal level of -
20 dBFS will equal an analogue signal level of +4 dBu.
EBU Technical Recommendation R68-2000. For professional equipment the
EBU Alignment Level specifies that a digital signal level of -18 dBFS will equal
an analogue signal level of 0 dBu.
Technical Specification
B-15
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