Spin Semiconductor

[livingston]

Ha, wow this thing is fun. I popped a 4-pole filter before the delay and another one after it, and added feedback to get some repeats happening. The unfiltered sounds are nasty in a cool way, I think.

To implement:
-variable delay time
-stomp switch that starts recording, then on the second tap, it ends the recording and starts playing it back.

I'll post the code as I add features.

[livingston]

So here's my code as of right now. It's just Don's code with 4-pole filters before and after the delay, with variable feedback from the output of the delay to the input of the delay. At first I tried feedback from the output of the post-delay filter, thinking it would be better to filter the signal each pass to avoid ever-increasing aliasing, but doing it this way killed too much of the feedback; at max feedback the repeats died after about 2 regenerations.

The filters, both pre- and post-delay, are controlled by a single pot. I may use that same pot to raise the gain a little when the filter cutoff is set to lower frequencies, to make up for the loss of volume with the filtering.