wav.py 文件源码

def save_output(data, filename):
    # data is the u-law quantized sample
    u_law = data
    u_law = [chr(x) for x in u_law]
    u_law = ''.join(u_law)

    original = audioop.ulaw2lin(u_law, input_sample_width)
    print "output data size: " + str(len(original))

    output = wave.open(filename,'w')
    output.setparams((input_num_channels, input_sample_width, SAMPLE_RATE, 0, 'NONE', 'not compressed'))
    output.writeframes(original)
    output.close()