MOTM

Elhardt wrote:

>Such a ridiculous and physically impossible statement. There isn't 
anything 
about an envelope follower or its filtering capability that comes 
close to the 
kind of complex freq response and sound I get from the processing I 
do.<

Thank you for the humble reply, but a synthesist of your caliber must 
know that sometimes extremely simple patches yield extremely complex 
results. Please note that I said the sound would *almost* shame your 
cello. But that ain't bad, given that it didn't require 100 digital 
filters.

I might have mentioned the patch in a (not very good) Polyphony 
article called "The Sensuous Envelope Follower."

As I recall, the cello sound used a pulse wave (going from spikey to 
fat), modulated by an ADSR.  When pulse waves start out very skinny, 
they look like DC to the envelope follower because the spikes are 
filtered out.  The PAIA design couldn't pass DC, so the sound would 
start at zero, then become fuller. Complex stuff happened as this 
transition occurred that gave a wonderful "bowing" effect--and the 
timbre was just right.  Mind you, the effect was good only over an 
octave or so, but it was very convincing.

johnm