audio.py 文件源码

def __init__(self, filename=None, scale2float=True):
        """Read a .wav file from disk"""
        assert filename is not None, "Specify a filename"
        self.filename = filename

        fs, samples = scipy.io.wavfile.read(filename)
        if np.rank(samples) == 1:
            samples = np.expand_dims(samples, axis=1)

        Audio.__init__(self, fs=fs, initialdata=samples)

        del samples # just to make sure

        if scale2float:
            self.convert_to_float(targetbits=64)