I'm trying to figure out how to use Mathematica to identify a note from a song. The short .mp3 file found here or here contains a bass-note that I'd like to identify. I can find it through experimentation with a piano, but I'd like to identify mathematically.
I know little about signal processing. I tried implementing a process shown in Plotting Fourier spectrum versus frequency of a signal, but 1) I don't understand signal processing and 2) the result has a lot of noise as the bass note is surrounded by lots of other sound.
How can I use Mathematica to analyze a short audio clip and identify dominant notes?