shithub: aubio

ref: e136c9f688671d2a688b39e4dce2590b09c84c91
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()