hal@pur-phy.UUCP (Hal Chambers) (07/03/84)
Well, there's nothing like being critized for something you didn't say...
The posting of my little "square wave experiment" was simply to point out
that imperfect reproduction of a 22kHz square wave (44kHz sampling) has
nothing to do with the digitization process ITSELF. The problems come from the
post processing of the D/A output. I NEVER said there could be any distinction
between a square, sine, or any other periodic wave shape at half the sampling
frequency. Since my critic and I are in complete agreement on this point I
won't elaborate.
As for the accusation that I didn't really do the "experiment",
they can try it themselves. There is no way to answer a person who, when
presented with facts, simply denies their existence.
Hal Chambers
Physics Dept.
Purdue Univ.
(..!pur-ee!pur-phy!hal)