MATLAB中 含可视化界面GUI的DCT离散余弦变换代码-MATLAB containing GUI-DCT transform code

脉冲编码调制程序，采用A律和u律，可在GUI中显示变换前后波形区别并播放声音。-A Pulse Code Modulation program based on A-law and u-law. Can display in the GUI waveform before-and-after difference and play the sound.