这是一个不错的光谱压缩的Matlab程序,希望它能对你有所帮助.-This is a good spectral compression Matlab procedures in the hope that it will be helpful to you.

说明：Kamath于2002年提出的多频带谱减法,用于调节频率减法系数以及信噪比。注意：信号的第一个0.25sec用于噪声建模。-Multiband_Kamath.m Descr iption: Multiband spectral subtraction as proposed by Kamath 2002. Uses adjusts the subtraction coefficient with the frequency as well as the SNR. note

A discrete cosine transform (DCT) expresses a finite sequence of data points in terms of a sum of cosine functions oscillating at different frequencies. DCTs are important to numerous applications in science and engineering, lossy compression of audi