> There are many pieces of gear floating around out there that already do
this. I
> have three different digital delays: Lexicon PCM-41, Deltalab Effectron,
Roland
> SDE-3000, and they all have voltage control of the delay time. In addition
the
> Roland brings the feedback loop to the outside world so you can patch in
> whatever you want, such as filter dampening. I just pulled my SDE out of
the
> rack two days ago in preparation to see how well I can get it to track the
> keyboard. So look around at your current gear and you might already have
> something that does this.
Maybe I shouldn't write too much about this at the moment - not before
I've read all the interesting links (thanks for the links!). And I'm not
thru
with reading the Yamaha patents yet.
But really, a VC delay line is only one tiny portion of the whole thing.
I have done experiments with VC delay lines in the past, but they sound
like a comb filter, not like a flute of a saxophone.
JH.