[plug] slowdown probs

Mike Holland myk at golden.wattle.id.au
Thu Aug 23 10:48:45 WST 2001


On Wed, 22 Aug 2001, alan howard wrote:

>  unfortunatly cd audio is just as bad. a 44khz sample rate ( normal cd ) will
> not correctly resolve a 9khz square wave

Alan, nor will the human ear. Are you making recordings for animal
behaviour research :)
  IIRC, a fourier analysis of a square wave, shows a 9kHz sine wave (which
you hear) plus 18kHz, and higher harmonics, which you'd hear little or
nothing of. Both the CD and MP3 standards are designed with the human ear
in mind. Just as GSM etc are designed for human voice.

  Is there any special problem converting CD to MP3? e.g. some artifact of
the sampling rate?

-- 
Mike Holland  <mike at golden.wattle.id.au>
                          --==--
There goes the good time that was had by all.
                -- Bette Davis, remarking on a passing starlet




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