数字语音的短时分析中的部分功能函数：包括短时能量、短时过零、短时幅度、短时幅度差。-Short-term analysis of digital voice some function: including short-term energy, zero short-term, short-term rate, short-time magnitude difference.

语音信号的时域、频域分析,包括短时能量分析、短时平均过零率、自相关函数、短时平均幅度差函数等。-Time-domain speech signal, frequency domain analysis, including short-term energy analysis, the average short-term zero-crossing rate, autocorrelation function, such as short-time average magnitude diff