Knox Video Chameleon64i User Manual
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KNOX VIDEO
Chameleon64i Routing Switchers
KNOX VIDEO
Chameleon64i Routing Switchers
Page 17
Page 18
HOW TO CONTROL THE SOUND:
Volume, tone, and balance (VTB) can be controlled via the RS232 control
inputs. All VTB commands are preceded by a $;
xx=an output number from 01-64 (or for trim, an input number from 01-64)
To control volume send a command of the form: $Vxx+, $Vxx-, or $Vxxyy where
xx is an output number and yy is a number from 00-63; 04 is the default value for 1:1
audio in to audio out.
To control bass send a command of the form: $Bxx+, $Bxx-, or $Bxxyy, as
above, but yy ranges from -7 to +7 (cut or boost); 0 is the default (neutral) value.
To control treble send a command of the form: $Txx+, $Txx-, or $Txxyy, but yy
ranges from -7 to +7, as above; 0 is the default (neutral) value.
To control balance between the left and right channels send a command of the
form: $Sxx+, $Sxx-, or $Sxx0, where 0 resets balance to equal (+ decreases left
channel; - decreases right) The range of the balance is from -32 to +32; 0 is the
default value.
To mute the sound output send a command of the form: $Mxx1 is mute on,
$Mxx0 is mute off (default is off).
To select loudness on or off: $Lxx1 is loudness on; $Lxx0 is loudness off
(default is off).
To make a fade from the current value to zero or from zero back to the
preselected full volume send a command of the form: $Fxxyy0 is fade down to 0;
$Fxxyy1 is fade up to previous volume (xx is output number, yy is time to fade from
01-99, where 99 is the longest fade.
To trim inputs send a command of the form: $Ixx+, $Ixx-, or $Ixx0, where 0 is no
trim; the range is from -3 to +3, default trim is 0.
Additional sound control commands:
$CI clears all input trims
$CxxI clears input trim for input xx
$C sets all VTB for all outputs to default values
$Cxx sets all VTB for output xx to default values
$Dxx dumps VTB values for output xx
$DI dumps table of all input trim values
Syntax notes:
Any command that allows a + or - also allows a number in front of the + or - to
indicate multiple steps; so $vxx+ increases volume by one step; $vxx3+ increases it
by three steps
Volume, bass and treble allow an absolute number to be entered, but balance
and trim allow only steps to be specified)