Ericsson AVP 1000 - Audio Compatibility in Low Delay, Mega Low Delay, Ultra Low Delay and Compatibility Modes

Advanced Video Processing and Networking
6-22
EN/LZT 790 0023/1 R16A
Table 6.12 Compatibility Mode 29.97/59.94 Hz
Scan
Encode
Delay
Applicable Bit rate
Range
Notes
CE-a J2K
Interlaced <140 ms 1 Mbps - 50 Mbps
Progressive <120 ms 1 Mbps - 50 Mbps
Table 6.13 Ultra Low Delay 29.97/59.94 Hz
Scan
Encode
Delay
Applicable Bit rate
Range
Notes
CE-a J2K
Interlaced <100 ms 1 Mbps - 50 Mbps
Progressive <88 ms 1 Mbps - 50 Mbps
6.8.3 Audio Compatibility in Low Delay, Mega Low Delay, Ultra Low Delay
and Compatibility Modes
Only MPEG-1 Layer II encode, Dolby Digital Pass-through, Dolby E Pass-through
and Linear PCM Pass-through audio modes are supported in Low Delay and Mega
Low Delay buffer modes. Additionally, Dolby Digital Encode is supported in Low
Delay mode. Other audio encoding standards are available (if licensed) but lipsync
and buffer compliance cannot be guaranteed with them.
The CE-a J2K only supports Dolby E Pass-through and Linear PCM Pass-through
audio modes. It does not support audio encoding, so there are no implications in
Ultra Low Delay and Compatibility modes.
6.9 VCM Audio Encoding Functionality
The VCMs support a wide variety of input audio signals, and can encode them in
various formats or pass them as they are received (Pass-through mode). Table 6.14
describes the different input interfaces, the number of audio channel pairs that can
be fed to the unit using the appropriate interfaces, and the encoding methods
supported by the various option cards in the CE VCM family.