shithub: aubio

ref: 89bc6f4938d3c1e41e351d7cd8314ed3fb3cd433
dir: /python/demos/demo_miditofreq.py/

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#! /usr/bin/env python

from aubio import miditofreq
from numpy import arange

upsampling = 100.
midi = arange(-10, 148 * upsampling)
midi /= upsampling
freq = miditofreq(midi)

from matplotlib import pyplot as plt

ax = plt.axes()
ax.semilogy(midi, freq, '.')
ax.set_xlabel('midi note')
ax.set_ylabel('frequency (Hz)')
plt.show()