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