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Find the waveform of lightsaber noise?

Posted 8 years ago

Hello!

I would like to find the waveform/timbre of the sound used for a lightsaber.

What I know: http://www.dblondin.com/071807.html

  1. It consists of 3 sounds in total: 2 asynchronous motor hums with a base frequency of 90-100 Hz, and an electronic hum of around 35 Hz.

  2. I have gotten somewhat close with:

    Play[Sin[2*Pi*369.99*t]*Sin[2*Pi*91*Sin[2*Pi*30*t]]
    

but this sounds too space-agey/cheap space gun style for a lightsaber. There is a deeper timbre there that I am missing

I would like to see what frequencies are used in the original sound files, so I found some .wav files online. The problem is that these are split into 2 channels, and the Fourier function won't show the FFT for them. The spectrogram will, but it will show them as a function of time, not frequency.

Question: How do I show FFT as a function of frequency for a .wav file with 2 or more channels?

POSTED BY: George Aguirre
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