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DIY Stompboxes => Building your own stompbox => Topic started by: Paul Perry (Frostwave) on September 18, 2004, 08:20:06 AM

Title: "double" envelope follower?
Post by: Paul Perry (Frostwave) on September 18, 2004, 08:20:06 AM
Thinking about those "wave multiplier" type circuits, wher you put a triangle wave in & hgalf way up it folds over, effectively doubling the frequency... well if you had the levels right & ran the output from an envelope follower in, then you could make an autowah that had an "unusual" behavior.
Maybe a knob to gradually bring it in, from 'normal' to 'double' (or more).
Title: "double" envelope follower?
Post by: Jason Stout on September 18, 2004, 10:39:12 AM
I'm imagining the effect would sound like a "hiccup”, definitely different!
Title: "double" envelope follower?
Post by: StephenGiles on September 18, 2004, 10:41:31 AM
I have mucked about with irregular envelopes till the cows come home, and almost without exception auto wahs driven thusly sounded awful (to my ears) - but from a novelty point of view of course, anything goes and it would certainly sound flash in a guitar shop!
Stephen
Title: "double" envelope follower?
Post by: Paul Perry (Frostwave) on September 18, 2004, 07:50:32 PM
Well here's another angle, use the envelope to control the level of a LFO (at say 4Hz). Then the resulting LFO can control a wah or tremolo, so that the depth of the effect is modulated by signal intensity. That might be musical enough!
Title: "double" envelope follower?
Post by: StephenGiles on September 19, 2004, 01:41:21 PM
Yes, I did that with my Frog filter + Rat, which was an adaptation of the Bi Filter Follower. The result was a magnificent Robin Trower sound.
Stephen