29 Nov
2010
29 Nov
'10
11:53 a.m.
Now here's the clever bit - I've modified
things slightly so that the
two Tomisawa generators can run at different speeds. So, by offsetting
the frequencies you get either a deep PWM squarewave or a kind of
"supersaw"-type sound. By varying the amount of modulation (beta) you
can determine the "shape" of the waveform.
You could also stick to just modifying the phase of op2 relative to op1.
An envelope could then be used to alter pulsewidth. Normal PWM would
then move back and forth rather than continously move forward - this
could be seen as good or bad depending on perspective. It wouldn't
resemble the raw Polymoog "Vox Humana" wave so much anymore.
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eins, zwei, drei ... tekno tekno??
http://www.youtube.com/watch?v=ZEgbW1FxR78