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Zektor Switch Serial Protocol, Version 0.16, 5/13/16
Audio Control
^BLZ @
zone
,+
step
$
Add ‘step’ number of 0.5dB steps to current balance.
^BLZ @
zone
,-
step
$
Subtract ‘step’ number of 0.5dB steps from current balance.
^BLZ @
zone
,@
zone
,?$
Read current balance settings of given zone(s).
Response Strings:
^=BLZ @
zone
,
bal
$
Where:
@
zone
= One (or more) zones to be affected.
bal
= Balance in 0.5dB steps from left to right, 200=Center. Range is 0 to 400.
The balance command is given in 0.5dB steps and uses an offset of 200 to indicate center, 0 indicates
full left (no audio on right channel), 400 indicates full right (no audio on left channel).
The balance command does not add gain, it only attenuates. Moving the balance to the left will lower
the volume on the right channel, but does not increase the volume on the left channel.
The value 200 is “center” and allows audio to pass unaffected on both left and right channels.
For instance:
^BLZ @1,206$
;Move zone 1’s balance to the right by lowering left channel by 3dB.
^BLZ @1,194$
;Move zone 1’s balance to the left by lowering right channel by 3dB.
‘GAZ’ Set Zone’s Gain (Output Levels)
Each zone has a gain level that can be set from -24dB to +24dB. The gain control allows you to match
the volume levels of each zone to the sensitivity of the amplifiers used in each zone. This allows vol-
ume settings to sound the same for each zone, even when using different model/brand of amplifiers or
different model/brand of speakers.
Zone gain is set in 0.5dB steps.
Command format:
^GAZ @
zone
,@
zone
,
gain
Set the gain of a zone or zones.
^GAZ @
zone
,+
step
$
Add ‘step’ number of 0.5dB steps to current gain.
^GAZ @
zone
,-
step
$
Subtract ‘step’ number of 0.5dB steps from current gain.
^GAZ @
zone
,@
zone
,?$
Read current gain settings of given zone(s).
Response Strings:
^=GAZ @
zone
,
gain
$
Where:
@
zone
= One (or more) zones to be affected.
gain
= Gain in 0.5dB steps with an offset of 200. Range is 152 to 248.
The gain command is given in 0.5dB steps and uses an offset of 200 to indicate a gain of 0.0dB. Values
above 200 raise gain, and values below 200 lower gain.
‘GAI’ Set Source’s Gain (Input Trimming)
Each source has a gain level that can be set from -24dB to +24dB. The gain control allows you to
match the volume levels of each source to the different levels of each source. This allows volume set-
tings to sound the same, when switching between source devices with different output levels.
Source gain is set in 0.5dB steps.