Cisco D9054 Installation And Operation Manual page 75

Audio Menu,
Continued
AAC, <ch1 to ch6>, Passthrough
Parameters:
Description
AAC, <ch1 to ch6>, Audio PID
Parameters:
Description
3) Note that the DVB tables use the PIDs from 16 to 20.
4038938 Rev A
Enable, Disable.
From this menu you enable or disable passthrough of AAC audio.
The D9054 HD Encoder accepts a pre-encoded AAC audio input. It
is recommended that you set the maximum data rate to that of the
external AAC Encoder. If the data rate of the AAC Encoder is lower
than the setting in the D9054 HD Encoder the audio will be passed
through and only the actual bits in the data stream will be used.
The default rate is 192 kbit/s.
The external AAC Encoder must be locked to the clock of the D9054
HD Encoder. This can be achieved by connecting the Ref Out
(Reference Output) ports to the external encoder.
A value between 16 to 8190
Observe that you may not use the same PID for any other program
element.
D9054 HDTV Encoder Intstallation and Operation Guide
3)
.
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