On Mon, 2012-02-06 at 17:56 +0100, Frank Barknecht wrote:
However when using this as a LOW frequency oscillator, I would simply ignore the literature on bandlimiting and go with a pure digital aliased wave full force! :)
Good practical advice... if you really start thinking about what is going to happen when you take a digital square wave and use it as a modulator on some other signal, probably by something evil and nonlinear like multiplying the signals together, you can give yourself a headache quite quickly!
Just remember, one person's "aliasing artifacts all over the spectrum" is another person's "gritty, trashy, beautiful dirt".
Thanks, Bill Gribble