一种应用于智能家居的语音端点检测方法

A kind of speech endpoint detection method is applied to intelligent household

提出了一种应用于智能家居的语音端点检测方法,综合利用语音信号的时域特性。设置了短时能量动态门限作为前端判定;对短时过零率算法做了抗干扰处理并结合平均幅度差函数做后期判定。实验结果表明,该算法能在室内信噪比较低的情况下准确地检测出语音信号,计算方法简单便于硬件实现,能够满足实时系统的需要。

Put forward a kind of speech endpoint detection method is applied to the intelligent household, comprehensive utilization of time-domain features of speech signals. Set up a short-time energy dynamic threshold as the front-end judgement;Did anti-jamming processing algorithm for short-time zero crossing rate and average magnitude difference function to do later.Indoors experimental results show that the algorithm can accurately under the condition of low signal noise ratio（SNR） to detect the speech signal, the calculation method is simple and convenient for hardware implementation, can satisfy the need of real-time system.