Specifications

ADJUSTING VOLUME USING BCS
COMMANDS
You can use BCS with an external controller that
connects to the serial connector on the Precis
CPU. BCS commands are a subset of the X
N
Net
communications protocol. Adjusting volume can
be done using any of the following four methods.
ä
Absolute – adjusts the volume to a specific
decibel level
ä
Relative – increases the volume a specific
decibel amount
ä
Increment/Decrement – increases or
decreases the volume a step
ä
Mute/Un-mute (Optional Feature) – applies
or removes mute to volume
Note: Volume adjustments are made on an
audio level and will remain in effect if you then
switch the output(s) on an audio follow video
level.
ADJUSTING VOLUME – ABSOLUTE METHOD
You can use the Absolute method to adjust the
volume of a destination signal to a specific
decibel level that is defined in relationship to the
input level.
To adjust volume using the Absolute method,
enter the command using the following
command line format (where “#” represents any
valid audio level or destination number and
“^^^” represents the specific decibel level you
want). The decibel level is specified as a decimal
number to the tenth place without the decimal
marker; for example, enter 100 for a decibel
level of +10.0 or enter –35 for a decibel level of
–3.5. The decimal number must be between
–70.0 and 10.0.
CL#O#VA^^^T
To cancel an incomplete BCS command, enter
the
“X” command at any time.
Examples:
BCS Command
Action
CL0O3VA100T
Adjusts volume to 10.0 dB for
Level 0, destination 3
CL0O6 7VA50T
Adjusts volume to 5.0 dB for
Level 0, destinations 6 and 7
CL0O2VA-250T
Adjusts volume to –25.0 dB for
Level 0, destination 2
CL0O7VA2X
Cancels the incomplete
command
Note: You can enter multiple destinations in
each Absolute Volume command by including a
space between each destination number, but you
can enter only one level per command line.
ADJUSTING VOLUME – RELATIVE METHOD
You can use the Relative method to adjust the
volume of a destination signal by a specific
amount.
To adjust volume using the Relative method,
enter the command using the following
command line format (where “#” represents any
valid audio level or destination number and
“^^^” represents the specific increase or
decrease in decibel level that you want). The
amount is specified as a decimal number to the
tenth place without the decimal marker; for
example, enter the digits 25 for an increase in the
decibel level of +2.5 or enter –250 for a decrease
in the decibel level of –25.0 The decimal number
must be between –70.0 and 10.0.
CL#O#VR^^^T
ADJUSTING AND CHECKING VOLUME (OPTIONAL FEATURE)
20 Precis Instruction Manual