Description

Hi,

The guts of this drone synth can be seen in the following video by Edo Paulus:

https://www.youtube.com/watch?v=tAtYht4QVnA

(Skip to about 4:00 to hear some of what the finished version sounds like.)

Basically, it is a sawtooth oscillator driving a delay nettwerk. Each channel has two delays with multiple feedbacks. For example, The left channel purple delay gets feedback from itself and from the purple delay on the right channel (similarly it gives feedback to the right channel purple delay as well).

Each of the delays has a scanning window in the feedback loop which averages the sound over the window Width, kind of like an envelope follower.

On the left side, the FB and Width knobs control all of the associated knobs simultaneously. The Saw knob smoothly morphs the oscillator from Saw Dn to Triangle to Saw Up.

Have fun.