摘要
语音端点检测是语音识别系统中最基本的模块,端点检测的准确与否直接影响了系统的运算复杂度和系统的识别性能。本文描述了一种典型的语音端点检测算法——两级判别法,并分析了这种方法在Matlab上的实现,最后给出了仿真结果。实验结果表明,两级判别法对于语音端点检测具有良好的效果。
Voice endpoint detection is the basic module in a voice recognition system. The effect of the endpoint detection directly affects the computational complexity and the recognition performance of the system. This paper introduces a typical method of voice endpoint detection which is two step discriminance. Then Matlab implementation is analysed. The simulation results are given in the end. The results indicate that two step discriminance is very effective in voice endpoint detection。
出处
《微计算机信息》
北大核心
2008年第4期217-218,共2页
Control & Automation
基金
江苏省自然科学基金(Bk2004059)
关键词
端点检测
短时能量
过零率
endpoint detection
short energy
cross zero ratio