MathGroup Archive 1999

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Sound/Play Filters? | Play Graphics

  • To: mathgroup at
  • Subject: [mg21101] Sound/Play Filters? | Play Graphics
  • From: Dirk Kraaijpoel <kraai at>
  • Date: Fri, 17 Dec 1999 01:21:02 -0500 (EST)
  • Organization: Universiteit Utrecht
  • Sender: owner-wri-mathgroup at


2 questions about Sound (Play)

- What do the graphics generated by Play mean
  I have the impression that the top graphic is
  the waveform fed to mathematica (i.e. generated
  by a function or a list of values) and the
  other one may be the one actually played.
- If the second one is the one actually played,
  then that would mean that digital filters are 
  applied before sending the signal to the 
  sound card.
  Because I want to know exactly what time
  series Mathematica sends to the sound card,
  I would like to know what filters are used
  and why.

Dirk Kraaijpoel

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