[sdiy] Dumb PWM question

[harrybissell at wowway.com]

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




On Tue, 26 Feb 2008 18:51:10 +0100, jbv wrote
> Ian,
> 
> > Sounds somewhat related to the Wavolver.  Look and see if this is close to
> > what you are asking for:
> > http://home.comcast.net/~ijfritz/sy_cir6.htm
> 
> I've made a rough schemo with a triangle wave (because it was easier 
> & faster
> 
> than a sine) to show what I have in mind : on the 1st part (top) the 
> period ratio is 50%, and it varies in the 2 other parts :
http://jbv.silences.club.fr/sdiy/PMW_example.jpg
> 
> I don't know if your circuit allows that...
> 
> JB
> 
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Harry Bissell & Nora Abdullah 4eva