visual.py 文件源码

def plot_channel(audio, sampling):
    channels, nframes = audio.shape[0], audio.shape[1]
    time_range = numpy.arange(0, nframes) * (1.0 / sampling)

    for i in range(1, channels + 1):
        pl.figure(i)
        pl.plot(time_range, audio[i - 1])
        pl.xlabel("time{0}".format(i))

    pl.show()