It has 4 CV Outs that range from 0 - 5v for the drone envelopes. The envelopes are all start out as ratios of each other (1, .6, .4, .25) and they drift a bit each time they change direction. The max drift adjustment is %5 of the base rate, with each cycle only drifting a little bit.
It has three knobs:
- Overall cycle speed - This scales the entire speed of the module
- Ceiling - This limits the max voltage of the output CV
- Floor - This limits the lower voltage of the output to a percentage of the ceiling
The circuit has been spliced together from various schematics to get it working, but I'll need to refine it more. Its using fast PWM through large caps to get a fairly smooth output.
The demo track is the three slower envelopes controlling vcas on supersaw voices. I wiggle all the knobs in the demo. The fade in / out is the clock start and stop.