hey frank
oh! this is great! i don't have time right now to dig into it, but i sure will after the semester is over (in a few days). i was always looking for a way to create pwm (or other changeable bandlimited waveforms).
On Sun, 2007-12-02 at 15:19 +0100, Frank Barknecht wrote:
This approach has one big advantage over bandlimiting with pre-calculated wavetables as realized in some old patches by Guenther Geiger and newer ones by Roman: The waveforms can be changed on the fly, for example to do PWM on a rectangle wave, which is hard or impossible with pre-calculated bandlimited waveforms
yeah, i am looking forward to see an implementation of bandlimited pwm square (or making my hands dirty by trying it myself).
As this technique wasn't really discussed on this list so far AFAIR, I just attached the patches for everyone who's interested in it to try and of course to comment and squash bugs.
[1] http://crca.ucsd.edu/~msp/techniques/latest/book-html/node196.html
i once read the chapter in millers book and also had a look at the example, but i haven't understood it. i hope your patches will help me understand better.
thanks
roman
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