I want to be able to make non linear curves to control volume of channels in renoise. The purpose is to control 3 different channel volumes with one midi-fader. The curves for the different channels should look something like this:
This way all the channels are heard with the fader in the middle position, channel 1 with the fader in the bottom position and channel 3 with the fader in top position. I want the transitions to be almost instant to be able to create rythmic cut-in and cut-out effects.