disp_mp3.py 文件源码

def display_wav(filename):
    input_data = read(filename)
    audio_in = input_data[1]
    samples = len(audio_in)
    fig = pylab.figure();
    print samples/44100.0," seconds"
    k = 0
    plot_data_out = []
    for i in xrange(samples):
        plot_data_out.append(audio_in[k]/32768.0)
        k = k+1
    pdata = numpy.array(plot_data_out, dtype=numpy.float)
    pylab.plot(pdata)
    pylab.grid(True)
    pylab.ion()
    pylab.show()