More ramblings about VCDO...

[Sean Costello]

Tim Ressel wrote:
 
> Your point is well taken. Digital oscillators are ruined by the same thing that
> makes them great: their ultimate stability. 

Please tell me which digital oscillators you are talking about, as I have worked
with many that could use some of this "ultimate stability." Many of the digital
oscillators I have programmed either die out in a matter of minutes, or blow up
almost instantly. Trying to get those poles exactly on the unit circle, with
finite precision math, can be a pain sometimes. OK, table lookup oscillators
don't have that problem, but I like to do things the hard way sometimes...

Sean Costello

P.S. As far as pitch stability, using a couple of different "randi" functions
(i.e. a function that generates random values at a given rate, and linearly
interpolates between those values, to produce smoothly varying random functions
at given "frequencies") to modulate the frequency should help emulate the pitch
fluctuations of analog oscillators. One should be at a very low frequency (<1
Hz), while the other should be somewhat higher (maybe 10-30 Hz), and both should
be VERY subtle.