Matlab实现对正弦波采样的线性内插，及上采样过程。-Matlab to achieve sampling sinusoidal linear interpolation, and the sampling process.

Performs N-D FFT interpolation any data for which fftn works. Will upsample by zero-filling, downsample by truncating high frequencies, or combine both up- and downsampling by dimension to allow arbitrary reshaping.-Performs N-D FFT interpolation on

重采样（升采样、降采样），含测试音频文件，大家一起交流下，-resample technology（upsample/downsample）,include wav test audio file

对于图像的upsample和downsample程序，分别提供bilinear和pixel replication两种方式。-For images upsample and downsample program, respectively bilinear and pixel replication in two ways.