降采样程序，从16k16bit数据 降采样到8k16bit-resample program，it resample the 16k16bit pcm to 8k16bit pcm

This scr ipt take the image of the parameter one, resize and resample this and save the resampled image in the dir of parameter 2, the third parameter is for set the dimensions (you should change this in the scr ipt code.