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Sound Analysis with the Fourier Transform and Python

FourierTalkOSCON

Presentation Materials for my Sound Analysis with the Fourier Transform and Python OSCON 2013 Talk.


Link to this: http://tinyurl.com/fourierpython


Presentation Index


To run locally, you must use this command to run ipython notebook: ipython notebook --pylab inline

You will also need to install these python libraries (along with their C dependencies):

  • numpy
  • scipy
  • matplotlib
  • ipython
  • scikits.audiolab

To record audio on your laptop, you can use sox (note that rec is a commnad installed with sox). Here are 2 useful sox commands

  • rec -r 44100 -c 2 -b 16 A4.wav
    • records at 44100 samples per sec, 2 channels, and 16 bits per sample
  • sox audio_2channels.wav audio_1channel.wav channels 1
    • converts from 2 channels to 1 channel
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