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Mike Raiford wrote:
> Sounds like PWM.
Strictly, that's what D/A and A/D converters do. ;-)
> Fun stuff. A while back I was playing around with some DSP-type stuff.
> What I found was interesting is that if you generate an ideal square
> wave, them attempt to sweep it, you'll get audible artifacts, but if you
> generate the square wave by adding sine waves at odd harmonics, and you
> use a cycle of that generated wave to produce a sweep, it works nice and
> smooth, as it should.
Somebody doesn't understand the Nyquist limit, and sinc filtering,
methinks...
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