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Adjusting and Verifying Audio
13
Instruction Manual – BCS Basic Control Structure Protocol
Adjusting Volume
To adjust volume use any of the following three methods:
Absolute – adjusts the volume
to
a specific decibel level
Relative – increases/decreases the volume
by
a specific decibel amount
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 decibel level:
1.
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 “General Rules for
Audio” on the previous page).
CL#O#VA^^^T
Volume Absolute Examples
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 that board’s documentation).
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 decibel amount:
1.
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 “General Rules for
Audio” on the previous page).
CL#O#VR^^^T
Volume Relative Examples
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 board’s documentation).
BCS Command
Action
CL0O3VA100T
Adjusts volume to 10.0 dB for Output 3 on Level 0
CL0O6 7VA-700T
Adjusts volume to -70.0 dB for Outputs 6 and 7 on Level 0
BCS Command
Action
CL0O3VR60T
Increases volume by 6.0 dB for Output 3 on Level 0
CL0O1 2VR-120T
Decreases volume by 12.0 dB for Outputs 1 and 2 on Level 0