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Sound wave regression

  1. May 20, 2009 #1
    We did a lab that involved using sound probes that gave us a bunch of data points which we were able to plot into a waveform using excel. However, we have to determine the equation of the waveform and it is expected that we include the uncertainty of the coefficients (much like using the LINEST command in excel) so is there a way to do trig regression in excel or maybe MAPLE (which I already have but don't know how to use)?
     

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    Last edited: May 20, 2009
  2. jcsd
  3. May 21, 2009 #2
    I am actually looking for the same thing too! Anyone knows how to?
     
  4. May 21, 2009 #3

    Born2bwire

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    Why bother? Measure/calculate/estimate the period, amplitude, phase and DC offset and you can get a good approximation from that. The plot looks fairly noise free and consistent in its data.
     
  5. May 21, 2009 #4
    Our teacher is very keen on the uncertainty :(
     
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