Sean H. Breheny wrote: > At 05:09 PM 5/10/2003 +1200, you wrote: > > I'd have expected the 22k5 @ 44.1 to be considerably more chopped > > up than that > > I think that GoldWave is probably doing some kind of interpolation when > generating highly zoomed-in displays. This could also partly explain the > "modulation" that you see. If your sampling rate is close to twice the > input frequency, then there will be a slow periodic variation of peak > sample magnitudes (a mere consequence of sampling, just like Moire patterns > in scanning). When GoldWave attempts to "connect the dots", it probably > ends up looking like a modulated sine wave, rather than the periodically > varying highly choppy thing you'd expect. See: http://www.circuitcellar.com/library/eq/151/index.asp Problem #7 (and its answer) -- Dave Tweed -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body