[sdiy] Dumb PWM question

[harrybissell at wowway.com]

I missed the "time compression / expansion" ...

The raphs look like unequal (and voltage controllable)
gains for signals of positive and negative polarity
with respect to ground.

That could be done quite easily, anyone with a big
modular probably has all the circuits they need right now...

Still bet it sounds like s**t

H^) harry



On Tue, 26 Feb 2008 21:04:47 +0100, jbv wrote
> well, the result might sound awfull, that's a possibility...
> but PWM on square waves sounds good, so may be it's worth a
> try with other waveforms and "natural" sounds as well...
> 
> IMHO the wisest approach is to process a digital soundfile (no
> realtime of course) and check the result before wasting days in
> circuit design...
> 
> JB
> 
> > The big question is does that method (unequal positive and
> > neative gains) "sound good" ???
> >
> > Juding from some experiments with a 'even harmonic distortion' generator
> > from a magazine (EDN, ED don't remember)... the answer might be a real
> > "no"
> >
> > Ian's circuit is guaranteed to sound good (ie like a synth, imho)
> >
> > H^) harry
> 
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Harry Bissell & Nora Abdullah 4eva