计算机工程与应用2011，Vol.47Issue(17)：137-139,3.DOI:10.3778/j.issn.1002-8331.2011.17.037
三阶累积量的语音激活检测方法
Speech signal activity detection algorithm based on third order cumulant
摘要
Abstract
In communication system, most channel noise can be considered as Gaussian random processes and the third order cumulant of Gaussian random signal is zero.The speech signal is not Gaussian random signal in general. This paper presents a novel speech signal activity detection algorithm based on the third order cumulant of noisy speech signal equaling to the cumulant of speech signal, so speech and noise can be distinguished by using the third order cumulant. The results of simulation show that this algorithm can effectively detect speech signal under low signal to noise ratio condition.关键词
三阶累积量/语音激活检测/高斯噪声Key words
third order cumulant/voice activity detection/Gaussian noise分类
信息技术与安全科学引用本文复制引用
刘福星,何选森..三阶累积量的语音激活检测方法[J].计算机工程与应用,2011,47(17):137-139,3.基金项目
湖南省湘潭市科技计划项目(No.ZJ20071008). （No.ZJ20071008）
