该程序将短时过零率与平均幅度两种方法相结合求取振动信号的起始点，是学习语音信号处理的好材料-The program will be a combination of short-time zero crossing rate and average amplitude are two ways to strike the starting point of the vibration signal is a good material

语音信号的短时过零率求取，此过程为语音信号的一个重要特征提取过程，可用于端点检测等过程。(This process is an important feature extraction process for speech signals and can be used for endpoint detection and other processes.)