tri 2 saw modualtion

[Martin Czech]

>    So I don't expect resonable behaviour in audio applications, where
>    frequency stability is a must. Symmetry modulation in this case is not
>    very interesting, it sounds like a more or less lowpass filtered saw.
> 
> Huh?  Really?  Have you tried it?  Doesn't it have some of those
> wonderful swooping Bessel characteristics?  How about audio frequency
> modulation of symmetry?  I haven't tried it myself, but I can't help
> but believe it would be useful.

Well, I did some simulation and produced a 8 bit soundfile of 10 seconds.
The result was disappointing. Maybe 8 bit is too poor to hear these.
It is certainly not the same as going from saw to sine
in a FM-synth (should be better PM synth, phase modulation).
Certainly the Bessel functions don't apply here, but it could SOUND
almost the same.
Audio modulation: Hmm, this is the same as using the linear FM-Input with
a strange pre-warped input , isn't it? Will it be that much different?
I doubt.

> 
> Here's another aproach:  Start with a sawtooth VCO and build a circuit
> to warp the symmetry of that.  
> 

Hmm, I see the point, have to think about ...
However, thanx.

m.c.