Sebastien posted Sep 4 '16, 15:07:
Hi everyone, (First, thanks to Joseph for the job ! It's working great.)
I would like to control the volume from my keyboard with a knob, I have tried two things but without success :
- send a MIDI CC 7 ("Channel volume") -> without impact on the sound
- send a MasterVolume Information -> mute the sound...
A MIDI CC 64 ("Sustain") works but not the volume. Has someone an idea to help me ?
AlexM posted Sep 7 '16, 03:02:
I don't quite understand what you mean by channel volume without impacting on the sound...
But anyway - are you tinkering with samplerbox.py? If so, in the MidiCallback() function you could play with this:
^^globals and variables above here^^
ccnumber = 7
if (messagetype == 11) and (note == ccnumber):
globalvolume = (10 * (-12.0 / 20)) (float(velocity) / 127)
From that you could pretty easily create a mute toggle function.
AlexM posted Sep 7 '16, 03:03:
Oops, not sure how to format code in this forum haha! (or edit for that matter!)
Turncoat posted Sep 10 '16, 01:42:
I think you would be better off putting a stereo log pot between the output and amp.