Grass Valley AMX-3981 2014 - Manual (Page 52)

GUIDE TO INSTALLATION AND OPERATION
46 | AMX-3981
Note: If the card is configured to insert a special SDID at the output, any Dolby Metadata packets at the input with the
same SDID will be deleted. Any other SDID packets not inserted by the card will be passed through untouched.
5.9 Audio Output panel
This panel provides additional audio processing for the 16
audio channels embedded in the 3G/HD/SD output:
• audio channel shuffling
• level adjustment
• mixing
• audio embedding mode.
You can configure the audio output shufflers/mixers (3G/HD,
SD and AES) differently for an SD input than for a 3G/HD
input. The card will remember the different parameters and
will load them automatically without user intervention based
on whether the video input is SD or 3G/HD. Ensure the card
has a video signal of the desired format before changing the
configuration.
.
5.9.1 CH 1-2, CH 3-4, … CH 15-16 tabs
Each of these tabs provides all necessary controls for the output mixers. The example shown is for the Embedded
Output, CH 1-2, but all panels have the same controls.
Operation Mode (Off, A, SUM(A+B), Mix, Mix 4CH): This menu allows the source(s) of each output channel to be
selected – a single channel, the sum of two channels, a mix of two channels, or on the even-numbered output channel
only, a mix of three or four channels.
Off: The output channel is muted.
A: The output channel is the channel source (ABUS Select and Channel) selected in sub-menu SOURCE A.
SUM (A+B): The output channel is the sum of the two channels sources (ABUS Select and Channel) selected in
sub-menus SOURCE A and SOURCE B.
• If you select this option, the SUM (A+B) Level pull-down is activated, allowing you to reduce the level of the
summed output (0dB, -3dB or -6dB).
Figure 5.38 Audio Output panel