labview example for object tracking(the previous one is for contour analysis)(labview example for object tracking)

用自相关函数提取语音信号基频，提取音频文件的基频等高线(Use the autocorrelation function on segments of the signal (windowsize: 100ms) and compute the fundamental frequency. Use a max_time_lag of 100ms in the autocorrelation function and a window shift of 25ms. Create a fundame

各种图形阴影，等高线绘制，交互式图形拟合，插值(All kinds of graphic shadow, contour line drawing, interactive graphic fitting, interpolation)