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centroid.py
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32 lines (24 loc) · 1.2 KB
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""" This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. """
import numpy as np
from smst.utils import audio
from scipy.fftpack import *
from pyo import *
fs, x = audio.read_wav("/pathtosound.wav") #audio should be mono
def spectral_centroid(x, samplerate=fs):
magnitudes = np.abs(fft(x)) # magnitudes of positive frequencies
length = len(x)
freqs = np.abs(fftfreq(length, 1.0/samplerate))
return np.mean((magnitudes*freqs) / magnitudes) # return mean
freq = int(spectral_centroid(x,fs))
s = Server(audio="jack").boot()
eq = EQ(SfPlayer("/pathtosound.wav"), freq = freq, boost = 6).out()
s.gui(locals())