How To Read A Musical File Using Python And Identify The Various Frequency Levels Of The Notes?

please help me with the python...this is my project topic...

Solution 1:

Fourier transforms. Learn some basics about music and signals before even considering code.

Basic Outline:

Audio Import

See http://wiki.python.org/moin/Audio/ and find one that will import your (unspecified) file.

Analysis

Get numpy.

>>>from numpy.fft import fft>>>a = abs(fft([1,2,3,2]*4))>>>a
array([ 32.,   0.,   0.,   0.,   8.,   0.,   0.,   0.,  
         0.,   0.,   0.,   0.,   8.,   0.,   0.,   0.])

We can clearly see the DC component at 0, then the major AC component at fs/4 and 3*fs/4 due to this being a real signal, as all frequency components are mirrored over the X-axis.