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Fourier analysis (Using Audacity)

  1. Dec 14, 2011 #1
    1. The problem statement, all variables and given/known data
    I'm doing a project for my school, deconstructing musical instruments into their various sinusoidal waves. I understand the outlying theory behind fourier analysis and found what seems like a simple way to do it in the newest version of Audacity.
    Go to "Analyze", then "Plot spectrum". In the window it opens, you need to change the number given to the biggest number available.
    This gives a close approximation of the frequencies the the function is made of (1 or 2 Hz off).
    The issue is that I cant find a way to correlate the amplitude given for the frequencies with the amplitude I used as an input to make the original function. This happens no matter how I get the answer. Any idea whats happening?

    2. Relevant equations


    3. The attempt at a solution

    See above
     
  2. jcsd
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