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

• 01_Introduction.ipynb
• 02_NatureOfWaves.ipynb
• 03_FourierTransform.ipynb
• 04_WaveDeconvolution.ipynb
• 05_RotationWithE.ipynb
• 06_FFTInPython.ipynb
• 07_SeeingSound.ipynb
• 08_STFT.ipynb
• 09_AudioFiltering.ipynb
• 10_Conclusion.ipynb

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