Simple envelope-gate circuitlet

[midwayfair]

This is theoretical, but I don't see a reason it wouldn't do something at least.

The idea is that you play hard and it warps something like a delay time pot, but then it shuts off the envelope effect until the hold cap drains. The idea is to use it for effects where you want the envelope to trigger, but you don't want to continue triggering the envelope when you keep playing.

I have no idea if this is actually useful, but let me know if you have any ideas.

It probably needs a buffer at the input if you want a threshold control.

EDIT: The extra LDR could control all sorts of things, like the decay, too. E.g. the harder or faster you play, the shorter the decay. That sounds like it would be useful for an envelope filter.

[StephenGiles]

Why not make it deluxe? Seems like a good idea.

[samhay]

Interesting idea.
Do you have the inputs on the 1st op-amp switched?

[midwayfair]

Interesting idea.
Do you have the inputs on the 1st op-amp switched?

Yeah, it should have the feedback loop linked to pin 2, not 3. Thanks for the catch!