[sdiy] Evelope Follower

[John L Marshall]

Envelope follower is basically a rectifier (absolute value) followed by a
very low pass filter (intergrator).

John
----- Original Message -----
From: Dr Strangelove <phdinfunk at hotmail.com>
To: <synth-diy at dropmix.xs4all.nl>
Sent: Wednesday, August 15, 2001 8:01 AM
Subject: [sdiy] Evelope Follower


> Hi, I've been working away trying to build a little mono-synth but the
next
> semester is nearly upon me so I'm revising my plans.  I've got a working
> filter I've built that I like a lot and I like the way all sorts of sounds
> work with it.  I am wanting to place the filter in a crybaby wah-wah
housing
> and have the cutoff under foot control, I also want to have an envelope
> follower in there too with variable control voltage sent to the filter
> cutoff.  I'll place the knobs for input level, Envelope follower control
and
> resonance on the top of the crybaby.  It should be lots of fun.
>
> I cannot find a schematic for an envelope follower.  Can anyone direct me
to
> a good envelope follower schematic, preferably a simple one?  I'm using
+/-
> 12v power. :-)
>
>          -=<Jonathan Pratt>=-
>        (Phdinfunk at hotmail.com)
>
>
>
>
>
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