dutils.py 文件源码

def plot_mfcc_feature(vis_mfcc_feature):
    # plot the MFCC feature
    fig = plt.figure(figsize=(12,5))
    ax = fig.add_subplot(111)
    im = ax.imshow(vis_mfcc_feature, cmap=plt.cm.jet, aspect='auto')
    plt.title('Normalized MFCC')
    plt.ylabel('Time')
    plt.xlabel('MFCC Coefficient')
    divider = make_axes_locatable(ax)
    cax = divider.append_axes("right", size="5%", pad=0.05)
    plt.colorbar(im, cax=cax)
    ax.set_xticks(np.arange(0, 13, 2), minor=False);
    plt.show()