Adjusting Audio; Adjusting Output Volume - AMX CP-20A Instruction Manual

Adjusting Audio

Some audio boards in AMX AutoPatch Distribution Matrices offer optional volume control and digital input
gain adjustment features. If your system contains these boards, output volume or digital input gain can be
adjusted using either the CP-20A control panel or BCS commands sent through a serial controller. For more
information on audio adjustment using BCS commands, see the BCS Protocol Instruction Manual.
When volume or digital input gain is adjusted for a device on one virtual matrix, the adjustment remains in
effect for that device on all virtual matrices switching audio signals.
Important: For AMX AutoPatch systems, the total through-system gain (the amount of input gain
plus the amount of output gain) specified for any input/output routing path cannot exceed 10 dBr. If
you enter a volume (gain) command that exceeds 10 dBr when it is combined with the gain of an
input, the command will be accepted (and will be indicated in status results) but will not result in an
audible difference of more than 10 dBr.
You can return to the Main Menu screen at any time by pressing the Function key.

Adjusting Output Volume

If your system has volume control, adjustments (within the volume range for the specific audio output board)
can be made at any time during normal operation. When audio is adjusted for a device on one virtual matrix,
the adjustment remains in effect for that device on all virtual matrices switching audio signals.
The example below adjusts the volume for Output (destination) 13: Speaker Set 1 Rm A on
Virtual Matrix 2.
To adjust the volume:
1. At the Main Menu screen, choose the Audio command.
If the Audio command is not available, press the Function key to view additional
Main Menu options.
The Adjust Audio Output screen appears, displaying the available output options.
CP-20A Instruction Manual
Adjusting Audio
23