
Chapter 6 Audio Configuration
© 2013 Harmonic Inc. Harmonic All rights reserved.
197
Ellipse 3000 Release 3.0, Rev. B
Coding Scheme Configuration
6.5.5.4
Output Rate (MPEG-4 HE AAC)
The Output Rate parameter sets the current output audio bit rate for the MPEG-4 HE AAC
encoded audio channel. The output rate value is affected by the Coding Scheme and Encoding
Mode parameters. This results in different available options for each combination of Coding
Scheme and Encoding Modes.
The following table details the available values of the MPEG-4 HE AAC Output Rate for each
available Encoding mode.
The MPEG-4 HE AAC Output Rate default value is
48 Kbps
.
NOTE:
Latency control parameter at low delay is not supported for MPEG-4 HE AAC. If selected, the encoder
will display a “Dependency Check” message. For more information about Latency Control, see
Front Panel
To set the MPEG-4 HE AAC Output Rate parameter on the front panel:
❖
Navigate
Root > Configuration > Audio > [Audio Channel] > MPEG-
4 HE AAC Parameters >
Output Rate
.
Web Manager
To set the MPEG-4 HE-AAC Output Rate parameter in the Web Manager:
❖
Select
Audio > Aud#
and access the MPEG-4 HE AAC Parameters box.
Encoding Mode
Available Output Rates (measured in Kbps)
Mono
10, 12, 14, 18, 20*, 24, 32, 36, 40*, 48, 64, 72 Kbps
Stereo
18*, 24, 32, 36, 40*, 48, 64, 72 Kbps
Output Rate
‚ 10 Kbps (mono)
‚ 12 Kbps (mono)
‚ 14 Kbps (mono)
‚ 18 Kbps