Harmonic Electra9200 - IOM-RAC2 Audio Encoding Features; IOM-RAC2 Coding Mode, Sampling Frequencies

Chapter 6 Audio Modules IOM-RAC2 Module
© 2015 Harmonic Inc. All rights reserved. 53 Electra 9200, Rev O
IOM-RAC2 Audio Encoding Features
Table 6–2: IOM-RAC2 Audio Encoding Features
Feature Support
Audio Density
n Decode, level, and encode16 audio streams, with no more
than 8 streams of multi channel. Example: 8 streams of multi
channel plus 8 streams of stereo are allowed.
Input format n MPEG-2 Transport Stream: up to 16 streams
n Embedded: from SDI (synchronous to video
Audio encoding
format
n MPEG-1 Layer II 2.0 compression
n AC-3 5.1 or 2.0 compression
n AC-3 metadata input
n AC-3 5.1 or 2.0 pass-through
n E-AC-3 5.1 or 2.0 compression
n AAC/HE AAC 2.0 (v1, v2)
n AAC/HE AAC 5.1
Audio decoding
format
n MPEG-1 Layer II (TS input only)
n AC-3 5.1 or 2.0
n E-AC-3 5.1 or 2.0
n AAC/HE AAC 2.0 (v1, v2)
n AAC/HE AAC 5.1
n Dolby E (SDI input only)
Extraction from serial
digital video (48 kHz
sampling only)
n Select up to eight pairs from any four groups
IOM-RAC2 Coding Mode, Sampling Frequencies
Table 6–5 lists the IOM-RAC2 features for each coding mode, including the supported
sampling frequencies.
Table 6–3: IOM-RAC2 Coding Mode and Sampling Frequencies
IOM-RAC2 Feature Coding Mode
Sampling
Frequency
MPEG-1 Layer II
compression
Single channel (1.0) Left
and Right
32 kHz
44.1 kHz
48 kHz
n Dual channel (1+1)
n Stereo channel (2.0)
n Joint stereo channel
32 kHz
44.1 kHz
48 kHz
MPEG-1 Layer II
compression
SPPC (separate PID
per channel)
Single channel (1.0) 32 kHz
44.1 kHz
48 kHz