Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: 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
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted