Zektor ProAudio 16™ DSP Preamp Audio Matrix - Manual (Page 22)

20 ClarityAudio Serial Protocol, Version 1.01, 11/8/12
Audio Control
The VMZ command allows you to mute the volume on the ClarityAudio using the audio processor.
This differs from the MZ command which is used to completely shut down a zone.
Using the audio processor allows a mute attenuation setting; allowing you to mute a level by a specific
amount, -20dB for instance instead of full audio off.
Also available are mute fade options. Instead of instantly jumping to a mute setting, you can fade over
time, or fade at a given speed, to the new mute level.
The VMZ command is used to mute and unmute a zones. The mute level and fading options are set by
the VMLZ command (See “‘VMLZ’ Set a Zone’s Mute Level” on page 20). The mute fade times are
set using the VMT command (See “‘VMT’ Set Muting (Fade) Times” on page 21).
There are three options when using mute:
0=Unmute - This disables muting, and returns the volume back to its original unmuted level.
1=Mute
- This enables muting. It attenuates the volume by the mute level (See: VMLZ).
2=NoMute - This disables muting, but sets the volume level to the current muted level.
The ‘2’ (NoMute) option allows the mute setting to be cancelled without affecting the volume level.
Response strings for the ‘VZ’ and ‘VPZ’ commands will be sent to indicate the new volume to the
controller. The response string for the ‘VMZ’ command will be a ‘0’ to indicate muting is now dis-
abled. A ‘2’ will never be returned in the response string.
The VMZ command format is:
^VMZ @ zone,@zone,mute$ Mute all channels of a zone or zones.
^VMZ ?$ In polled mode, reads current settings of all logged changes.
^VMZ @ zone,?$ Read current settings of given zones.
Response Strings:
^=VMZ @ zone,mute$
Where:
@ zone = One (or more) zones to be mapped.
mute = Mute setting (0=Unmuted, 1=Muted, 2=NoMute).
A value of ‘2’ is never returned by the response string. If muting is disabled by the ‘2’ (NoMute) com-
mand, a value of ‘0’ will be returned to indicate muting is disabled.
‘VMLZ’ Set a Zone’s Mute Level
The VMZ command allows you to mute the volume on the ClarityAudio. This differs from the MZ
command in that the MZ command is used to completely shut down a zone, whereas using the VMZ is
a volume based mute and allows all the volume features supported by the ClarityAudio.
These features include a mute level setting that allows you to mute a level by a specific amount, -20dB
for instance instead of a full mute.
The VMLZ setting is the value to be subtracted from the current volume when the mute command is
enabled. This value is the number of 0.5dB steps to be subtracted, for instance a setting of 40 would
subtract 20dB whenever the mute command is enabled. A setting of 248 will always do a full mute.
There are three different ways of muting the volume:
1 Jump immediately to the new mute volume.
2 Fade to the new level in the time given by the ‘VMT’ command.
3 Fade to the new level using the slope given by the ‘VMT’ command.