Harmonic Electra9200 - Level Magic Dynamic Audio Leveling

Chapter 7 FLEX Decoding Module Audio Specifications
© 2015 Harmonic Inc. All rights reserved. 68 Electra 9200, Rev O
Level Magic™ Dynamic Audio Leveling
Audio leveling is also supported by the FLEX decoding module. This feature defines a
const ant gain adjustment for incoming audio signal.
Dynamic leveling uses the same technology found in Jünger Audio’s Level Magic™ hardware-
based processors. Level Magic is a trademark of Jünger Audio Studiotechnik GmbH. The
dynamic leveling option requires a firmware license.
AC-3
(continued)
Multichannel
Mono Available
(must be
enabled for
this
decoding
mode, or an
alarm is
raised and
decoding
stops)
Multichannel
downmix to
Mono on the
left channel.
Stereo
a
Stereo Audio on both
channels.
Multichannel No Audio on both
left and right
channels.
Silence on all
others.
3 x Stereo
a. Enabling Multichannel downmixing allocates resources for downmixing, resulting in resource usage equivalent to 3 x
Stereo.
Table 7–8: MPEG-L2 Resource Considerations
Input Format
Audio Input (into
card)
Decoding
Mode
Result
Resource Usage
Equivalent
MPEG-L2
Mono Mono Audio on left
channel. Silence on
right channel. Stereo
Stereo
Stereo Mono Audio on both
channels.
Stereo
Table 7–7: AC-3 Resource Considerations
Input Format
Audio Input
(into card)
Decoding Mode
Multichannel
DownMix
checkbox
Result
Resource
Usage
Equivalent