说明：  这是一个matlab程序，该程序的功能是读取一个 .wav 格式的语音信号，画出该语音信号的短时能量。主程序调用了自己编写的两个函数，函数的功能分别是对语音信号进行分帧以及计算每一帧的时间。语音分帧是语音信号处理的关键步骤，该程序可以帮助你快速入门。
(This is a matlab program, the function of the program is to read a ' .wav' voice signal format, draw short-term energy of the speech signal. The main program calls two functions I have written, performance function are calculated for each sub-frame and the time frame of the speech signal. Voice Framing is a key step in the speech signal processing, the program can help you get started quickly.)