If you have the capability, the 60 Hz hum can be used to get a very accurate speed. You need a very fast fft (around 65k) and very small freq resolution (around .02 Hz)
Dan > > At 4:34 PM -0800 2/19/04, Jim Powell wrote: > >I wish I had a way to check the speed of these > tapes, old cassette machines > >being what they too often were. But with what > standard to compare a unique > >jam? > > A tuning fork and a well-trained ear should suffice. > > > __________________________________ Do you Yahoo!? Yahoo! Mail SpamGuard - Read only the mail you want. http://antispam.yahoo.com/tools
