MOTM

> > That's already a given, and you missed my point anyway. If you sample a
> > sine wave @ 20Khz and a square wave @ 20khz, you will only get a 10khz
> > square wave when you go D to A.
> No, you get a 10kHz SINE wave, due to the reconstruction filter following
> the DAC.  That is, IF the filter is ideal, as specified by Nyquist.

Good catch - very true. Let's reverse my statement - if you sample a 10khz
square wave at 20khz, assuming reconstruction filter/oversampling you'll
get a 10khz sine wave - not the original 10khz square wave. Still the
point remains - a higher sampling rate will yield a "closer to the
original" waveform than a lower one.

-->Neil

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Neil Bradley            In the land of the blind, the one eyed man is not
Synthcom Systems, Inc.  king - he's a prisoner.
ICQ #29402898