Dave Smith Instruments SYNTHESIZERS

as far as I know, the evolver does not have cv inputs. 

it has external signal inputs.

they're very different things.

I think the external signal input can be used to generate an amplitude
envelope, that can then be used as a mod source, but since I never use
evolver as a signal processor, I could be wrong.

Anyway - why bother with CV? 
why not use zigbee to just send MIDI to the evolver?

you can do PLENTY with the evolver using MIDI (SysEx especially)  you
can tweak any parameter at all. And if you can program your zigbee
adapters to generate these sysex messages from generic MIDI controller
data that you would send over the air (should be trivial for someone who
knows how to code microcontrollers) then you can do everything on the
evolver wirelessly.

I still don't know why you'd want to all this, though. 

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