envelope follower question

[Theo]

A env.follower outputs a CV  signal that
follows the env the audio signal on its input.
So audio input and CV output.
The env.follower only exstracts a control signal form the input.
You can use the CV signal to control a VCA or VCF unit,
these then can transform audio signals for u.

The name env.follower is somtimes used for a FX box
that holds a env.follower and a VCF and/or VCA.
(like electroharmonics mrQ) this may have confused you.

Hope this helps 

Cheers Theo
----- Original Message ----- 
From: michael <michrice at earthlink.net>
To: <synth-diy at node12b53.a2000.nl>
Sent: Monday, March 27, 2000 4:58 AM
Subject: envelope follower question


> 
> hi all!
> 
> i'm trying to figure out Tom's preamp/envelope follower schematic
> 
> http://www.geocities.com/efm_gc/cbook/pics/apm1a_sd.gif
> 
> i only see one input and output from the envelope follower. where does it
> take the envelope from? unless i understand wrong, shouldn't there be an
> input signal and an envelope input?
> 
> could someone straighten me out on this?   :)
> 
> michael
> 
>