实验室尝试语音变音程序，还没有整理不过可以使用，效果不好。-Attempt to change tone of voice laboratory procedures have not yet collated can be used, however, has not worked.

变声 重采样实现变声不变速，重采样实现变声不变速-change voice

此文件实现了让语音信号通过低通，高通，带通滤波器使其变声，并且在GUI界面上绘出了个滤波器的频率响应和语音信号的频谱。-This file allows to achieve a voice signal through a low pass, high pass, band pass filter to make it change the sound, and plotted on a GUI interface and voice signal spectrum frequency res