Test Equipment

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Just another Moderator
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Hi Tom, unfortunately all the pc based scope software I could find is limited to a 44.1Khz sampling rate :( The audigy will record at 96Khz and the onboard sound at 192Khz, but the software doesn't seem to allow for it.

Needing 10 times the frequency certainly explains why it does such a poor job, and thinking about it even with relatively high sampling rates the reconstruction filter is probably going to assume it is trying to reconstruct a sine wave (or variation thereof) rather than a square wave, so the chances of it doing it right without greatly higher sampling frequency than the fundamental is probably very slim.

Tony.
 
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