Adjusting Volume - AMX AutoPatch Epica-128 User Manual

Adjusting & Verifying Volume
ä The total through-system gain (the amount of input gain plus the amount of
output gain) for any input to output routing path will not exceed +10 dB
(automatically limited by the router). If a volume command is entered that
exceeds +10 dB 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 dB.

6.1 Adjusting Volume

To adjust volume use any of the following three methods:
ä Absolute – adjusts the volume to a specific decibel level
ä Relative – increases/decreases the volume by a specific decibel amount
ä Increment/Decrement – increases or decreases the volume a step
Absolute Method
The Absolute Method adjusts the volume of an output to a specific decibel level.
To adjust an output's volume to a specific level, enter the Volume Absolute
command below. Replace the "#"s with the level and output number(s) and
replace the "^^^" with the decibel level (entered as a decimal number; see
page 6-1).
CL#O#VA^^^T
Volume Absolute Examples:
BCS Command
CL0O98VA100T
CL0O156 157VA-700T
Note: If the decibel level requested is outside the range for the selected output,
the system will respond with an "X" indicating an invalid value was entered
(for a specific audio board's volume adjustment range, see the
Boards & Specifications section of this manual ).
Relative Method
The Relative Method adjusts the volume of an output by a specific decibel
amount.
To adjust an output's volume by a specific level, enter the Volume Relative
command below. Replace the "#"s with the level and output number(s) and
replace the "^^^" with the decibel level (entered as a decimal number; see
page 6-1).
CL#O#VR^^^T
6-2
Action
Adjusts volume to 10.0 dB for Output 98 on Level 0
Adjusts volume to -70.0 dB for Outputs 156 and 157 on Level 0
BCS Serial Control Protocol