中文说明：基于图形界面的matlab滤波器设计，可实现声音的获取，时域频域分析，通过中通，高通，低通滤波器事声音的变化分析等。
English Description：
Matlab filter design based on graphical interface, can achieve sound, time frequency analysis, pass, high pass through, low pass filter. The change of voice analysis.