I have a wav file containing a series of chords, each containing 3 or 4 notes, played concurrently.
I need to find the frequencies of each note in each chord, and I can use matlab to do any computation.
Currently I think I need to find the spectrogram of the wav file and convert the frequencies from normailsed frequencies to normal frequencies (I know the sampling rate). Here is the spectrogram:
Is this a good approach to solving this problem?
I've already tried it, but the spectrogram isn't particularly informative. Is there an alternative method that I'm ignoring?