Python: write a wav file into numpy float array

问题

ifile = wave.open("input.wav")

how can I write this file into a numpy float array now?

回答1:

>>> from scipy.io.wavfile import read
>>> a = read("adios.wav")
>>> numpy.array(a[1],dtype=float)
array([ 128.,  128.,  128., ...,  128.,  128.,  128.])

typically it would be bytes which are then ints... here we just convert it to float type

you can read about read here https://docs.scipy.org/doc/scipy/reference/tutorial/io.html#module-scipy.io.wavfile

来源：https://stackoverflow.com/questions/16778878/python-write-a-wav-file-into-numpy-float-array