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Technical Specification
• RIGHT TO BOTH (Channel 2 on left and right)
When the input signal is STEREO, the Audio digital output format will always be
STEREO.
Where a dual mono service is available, it is possible to configure the output as
MIXED TO BOTH, LEFT TO BOTH and RIGHT TO BOTH.
B.3.4 Lip Sync
The audio at the output remains synchronous to the decoded video by default (i.e.
where both video and audio streams are available from the same service). In such
circumstances the video and audio streams share the same PCR.
The lip sync error (delay from presentation of video until presentation of audio)
introduced by the Receiver is in the range of ±5 ms.
The lip sync delay between stereo pair 1 and 2 is ±2 ms because the PTS will be
presented independently for each pair.
When using frame sync the lip sync error is up to 40 ms due to audio frame skip and
repeats.
B.3.5 Supported Audio Specifications
Table B.8 Supported Audio Specifications
Specification Description
ISO/IEC 13818-3
Generic Coding of Moving Pictures and Associated Information:
(MPEG-2) Audio.
ATSC A-52 Digital Audio Compression Standard (Dolby Digital).
SMPTE 302M Linear Audio (Ericsson’s interpretation of the specification).
B.3.6 Supported Audio Bit-rates
Table B.9 Supported Audio Data Bit-rates (MPEG-2)
Mono kbps Stereo kbps
32 64
48 96
56 112
64 128
80 160
96 192
EN/LZT 790 0003/2 R1A
B-10