MIDI CC#7 : per channel or global

[BenjaminPoilve]

Thanks for the great software :)

I'm currently working on a synth, that uses MIDI mode 4 to send one note per channel and controls volume and pitch-bend per channel. Using midiView I checked that the signals are indeed assigned to the right channels.

On Surge XT in MPE mode, the pitchbend per channel works great, but it seems that all CC#7 messages are interpreted as global and applied to all channels.

Did I misunderstood that CC#7 is supposed to be a per-channel CC? Or is it a Surge-specific choice?

Thanks in advance!

[baconpaul]

I'm not sure what midi mode 4 is, but in surge CC#7 is a monophonic source not a per voice source yes.

The only monophonic CCs we lift to per voice in MPE mode are 74 (timbre) and channel at (mpe pressure)

[mkruselj]

https://www.philrees.co.uk/articles/midimode.htm#alloc

[baconpaul]

Oh right well til!

Surge doesn’t do any of that

[BenjaminPoilve]

Thanks a lot for the answer! Indeed I should have been clearer, and was going to paste the exact same link.

Well received then, at least I am now sure this is not on my controller's side. Maybe there is some parameters that I could map the MPE pressure to that would have a similar effect (per-note volume)?

[baconpaul]

Right we have loads of per note volume hooks - the note expressions work for instance - but it’s just not hooked up to the midi processors which don’t per voice spread 7

We could add a mode where cc7 sets the volume note expression for each voice on that channel but it would be code

[BenjaminPoilve]

Well that might be a bit niche for a feature request :) And I fear I don't have enough experience or familiarity with the codebase to do a pull request on that.

Thanks again for your help in understanding the issue I faced!

[baconpaul]

I just can't wait for MIDI2/UMP which would solve this completely.