MathGroup Archive 1999

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Sound and Mathematica

  • To: mathgroup at
  • Subject: [mg19752] Sound and Mathematica
  • From: at (Tobi)
  • Date: Wed, 15 Sep 1999 03:53:04 -0400
  • Organization: The Math Forum
  • Sender: owner-wri-mathgroup at


I've a problem with mathematica: I want to create a sound which
includes all frequencies between 20 Hz and 20 000 Hz. The sound should
begin at 20 Hz and stop at 20 000 Hz and should increase linearly. For
testing it, I used the following mathematica command (20 - 4000 Hz):
(Later I want to replace 4000 by 20 000)

Play[Sin[4000 t 2 Pi t], {t, 0, 1}]]

But the frequency, on which this generated sound stops was much more
higher than 4000 Hz! What's my mistake?



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