Cisco D9054 Installation And Operation Manual page 74

Audio Menu,
Continued
AAC, <ch1 to ch6>, Mode
Parameters:
Description:
4-20
Note: This menu will only be displayed if you have installed the
AAC audio option.
Dual Mono 1+1, Single Mono 1/0, Stereo 2/0, Joint Stereo 2/0,
Mono 1/0 LR, or 3/2 (L,C,R,Ls,Rs,LFE).
Do not use Joint stereo audio coding if you want to transfer
matrixed sound (i.e. Stereo Surround sound). Use Stereo instead. If
you use Joint stereo, part of the phase information which is essential
for re-creating the surround channel information disappears.
The default setting is Stereo (
If the mode is set to Dual Mono (1+1), then two completely
independent program channels, referenced as Mono Channel 1 and
Mono Channel 2, are encoded into the bit stream. Dual-mono mode
is primarily intended for professional applications. Dual-mono
cannot be expected to work with consumer AAC decoders.
Note: The 3/2 (L,C,R,Ls,Rs,LFE) mode is only available for
encoders equipped with a Multiple Channel Audio (MCA) card.
Note: The 3/2 (L,R,C,Ls,Rs) mode is only available for Ch 1 and Ch
4.
D9054 HDTV Encoder Intstallation and Operation Guide
.
2/0)
4038938 Rev A