1#! /usr/bin/env python 2 3from aubio import miditofreq 4from numpy import arange 5 6upsampling = 100. 7midi = arange(-10, 148 * upsampling) 8midi /= upsampling 9freq = miditofreq(midi) 10 11from matplotlib import pyplot as plt 12 13ax = plt.axes() 14ax.semilogy(midi, freq, '.') 15ax.set_xlabel('midi note') 16ax.set_ylabel('frequency (Hz)') 17plt.show() 18