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Dual mono, Lip sync, Supported audio specifications – TANDBERG TT1260 User Manual

Page 100: Supported audio bit-rates, B.3.6 dual mono, B.3.7 lip sync, B.3.8 supported audio specifications, B.3.9 supported audio bit-rates

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Technical Specification

Page B-8

Instruction Manual: TT1260 Standard Definition Professional Receiver/Decoder

ST.TM.E10100.1

·

Right to both (right signal to left and right outputs)

B.3.6

Dual Mono

Where a dual mono service is available (i.e. stream 1 and stream 2 sharing

the same PID), it is possible to configure the output as follows:

·

Stream 1 on both left and right channels

·

Stream 2 on both left and right channels

·

Stream 1 on left channel, and stream 2 on right channel

B.3.7

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 ±2ms.
The lip sync delay between stereo pair 1 and 2 is ±2ms because the PTS

will be generated independently for each pair.
When using frame sync the lip sync error is –10 to +30ms due to audio

frame skip and repeats.

B.3.8

Supported Audio Specifications

Table B.6: Supported Audio Specifications

Specification

Description

Availability

ISO/IEC 13818-3

Generic Coding of Moving Pictures and Associated
Information: (MPEG-2) Audio

All models

ATSC A-52

Digital Audio Compression Standard (Dolby Digital)

All models

SMPTE 302M-2000

Linear Audio (TANDBERG Television’s interpretation
of the specification)

All models

B.3.9

Supported Audio Bit-rates

Table B.7: Supported Audio Data Bit-rates (MPEG-2)

Mono kbit/s

Stereo kbit/s

Mono kbit/s

Stereo kbit/s

32

64

96

192

48

96

112

224

56

112

128

256

64

128

160

320

80

160

192

384