摘要
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。研究了短时能量、短时幅度差、短时过零率和短时过门限率的语音端点检测算法,并对短时过零率、短时过门限率在有无噪情况下的检测效果做了分析和比较。
Endpoint detection is very important step for speech signals processing, which accuracy directly influences the speed and result of speech signals processing, the short-term energy, Short-term breadth difference, Shortterm zero-crossing rate algorithm and the short-term threshold-crossing rate algorithm wose studied, and does the analysis and comparison of the Short-term zero-crossing rate algorithm and the short-term threshold-crossing rate algorithm in noise and not in.
出处
《科学技术与工程》
2008年第15期4396-4397,4405,共3页
Science Technology and Engineering
关键词
端点检测
过零率
过门限率
语音信号处理
endpoint detection zero-crossing rate threshold-crossing rate speech signals processing
