Any auto wah use an ADSR?

[blearyeyes]

I use an auto wah software plug-in that has a threshold setting that triggers an ADSR.
It also has max and min frequency settings (toe and heel or open and closed) that lets the ADSR push the wah to a preset MAX frequency. (stuck wah) The effect is such that any drop in level below he threshold setting allows the wah to close per your Release settings on the ADSR.

Basically I love this thing and wish I could make a pedal, or find a design that does basically the same thing.
From what I know most auto wahs use an envelope follower..unless I'm mistaken?

[stecykmi]

good question, there are none that i know of but keep in mind that a plucked string's envelope will look a lot like a typical ADSR envelope. a simpler attack/decay control setup (which are more common) may be all you need for most guitar applications since you can sorta fake the extra controls with picking and a threshold/intensity control. the primary reason a synth needs an ADSR envelope is because synth oscillators are either on/off with no other control over the volume.

[blearyeyes]

Playing fast lead guitar makes the envelope of the string pluck moot. But I understand your point. I recorded this plugin. I'll try to post a link.

http://www.shattuckforensics.com/music/can_i_still_play.m4a

[alanp]

Really accurate envelope followers are a pain in the ass in analog hardware.

[blearyeyes]

Really accurate envelope followers are a pain in the ass in analog hardware.

I really don't like envelope followers. The above link has the plug-in I'm talking about.
Hadn't played in a long time, wanted to see if my fingers still worked. Like riding a bike.

[blearyeyes]

Bump

Any other input?