Chapter 6 Audio Configuration
© 2013 Harmonic Inc. Harmonic All rights reserved.
161
Ellipse 3000 Release 3.0, Rev. B
Coding Scheme Configuration
6.5.1.3
Output Rate (MPEG-1 Layer 2)
The Output Rate parameter sets the current output audio bit rate for the audio channel. The
output rate value is affected by the MPEG-1 Layer 2 Coding Scheme and Encoding Mode
parameters. This results in different available options for each combination of Coding Scheme and
Encoding Modes.
The available MPEG-1 Layer 2 (Musicam) Output Rate Options are given in the following table.
The Output Rate default value is
192 Kbps
.
NOTE:
When setting the latency control parameter to low delay, the audio output rate must be set to a high
rate (minimum of 384,000 bps). If the rate is not high enough, the encoder will display a
Dependency Check
message. For more information about Latency Control, see
5.4.1 Latency Control (MPEG-2/MPEG-4 AVC)
Front Panel
To set the Output Rate parameter on the front panel:
❖
Navigate
Root > Configuration > Audio > [Audio Channel] > MPEG-1 Layer 2 Parameters >
Output Rate
.
Web Manager
To set the MPEG-1 Layer 2 Output Rate parameter in the Web Manager:
❖
Select
Audio > Aud#
and access the MPEG-1 layer 2 Parameters menu.
Encoding Mode
Available Output Rates (measured in Kbps)
Mono
32, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 324, 384 Kbps
Dual Mono
64, 96, 112, 128, 160, 192, 224, 256, 324, 384 Kbps
Stereo
64, 96, 112, 128, 160, 192, 224, 256, 324, 384 Kbps
Joint Stereo
64, 96, 112, 128, 160, 192, 224, 256, 324, 384 Kbps
Output Rate
ƒ 32 Kbps (mono)
‚ 48 Kbps (mono)
‚ 56 Kbps (mono)
‚ 64 Kbps
