一种语音端点检测的方法及改进

An Endpoint Detection methods for Speech Signals and Modified

端点检测是语音信号处理过程中非常重要的一步,它的准确性直接影响到语音信号处理的速度和结果,因此端点检测方法的研究一直是语音信号处理中的热点。本文研究了传统的短时能量和过零率相结合的语音端点检测算法,修正了传统过零率的计算。同时采用窗长动态改变的方法对其进行了改进。实验表明改进后的端点检测方法能够比较准确地检测语音的端点。

Endpoint detection is very important step for speech signals processing, which accuracy directly influence the speed and result of speech signals processing, so the research of endpoint detection methods is the hotspot of speech signals processing. The analysis about the endpoint detection methods with energy and Zero-crossing,amend the tradition Zero-crossing measurements and modified by the dynamic length of windows. Research pointed out that the modified methods can detect the endpoint exactly.