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MathGroup Archive 1999

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Re: Sound and Mathematica

  • To: mathgroup at smc.vnet.net
  • Subject: [mg19812] Re: [mg19752] Sound and Mathematica
  • From: "Hans J.-I. Michel" <hans at michelmedia.com>
  • Date: Fri, 17 Sep 1999 01:36:55 -0400
  • Sender: owner-wri-mathgroup at wolfram.com

Tobi

I suggest that you look into the Add-On package

Miscellaneous`Audio`

Particularly SampleRate options for sound primitives.

Hans
-----Original Message-----
From: Tobi <cyber.guru at gmx.de>
To: mathgroup at smc.vnet.net
Subject: [mg19812] [mg19752] Sound and Mathematica


>Hi!
>
>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?
>
>Thanks,
>
>TOBI
>



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