寻找在python中读取音频波形值

Question

我试图读取和操作音频文件， 如何使用python读取和操作wave文件的wave值？

Answer 1

SciPy libraries有很多资源：

  

写作和阅读：   

import numpy as np
from scipy.io import wavfile

fs = 44.1e3
t = np.arange(0, 1.0, 1.0/fs)

f1 = 440
f2 = 600

x = 0.5*np.sin(2*np.pi*f1*t) + 0.5*np.sin(2*np.pi*f2*t)

fname = 'output.wav'
wavfile.write( fname, fs, x )


fs, data = wavfile.read( fname )

print fs, data[:10]

  

文档：   http://docs.scipy.org/doc/scipy-0.14.0/reference/io.html#module-scipy.io.wavfile

• 阅读： http://docs.scipy.org/doc/scipy-0.14.0/reference/generated/scipy.io.wavfile.read.html#scipy.io.wavfile.read
• 写作： http://docs.scipy.org/doc/scipy-0.14.0/reference/generated/scipy.io.wavfile.write.html#scipy.io.wavfile.write

之前已经问过这个问题：Reading *.wav files in Python