滤波器的设计以及零极点对应频率响应分析，matlab程序！-Filter design, as well as the corresponding zero-pole frequency response analysis, matlab procedures!

利用MATLAB对语音信号进行数字信号处理和分析,以及合成，在MATLAB软件平台对所采集的语音信号，加快和变慢语速,同时进行一些特殊处理,如回音和变声,并进行语音的线性预测分析。-MATLAB voice signal to digital signal processing and analysis, and synthesis, in the MATLAB software platform for the acquisition