Comparing fft's to classify data.
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Hello all,
I am trying to write a program that distinguishes notes by reading the fft of some test data and comparing it with a bank of data.
If you see the image i have linked below it is clear which of the two banked fft's (red and blue) match with my test data (green). I can see this, but how do i get matlab to make this comparison and produce this result.
Please note when i implement it i will have the fft of every note on a 6 string guitar saved as banked data.
P.s: i've touched on knnsearch but its all nonsense to me o.O any insights or alternatives regarding this? Thank you!
David.
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2013-2-24
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