基于自相关函数最大值的语音端点检测方法 a method of the voice endpoint detection based on maximum of autocorrelation function.pdfVIP
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基于自相关函数最大值的语音端点检测方法 a method of the voice endpoint detection based on maximum of autocorrelation function
语音技术
W @ @ 1T @R
文章编号: ( )
1002-8684 2006 12-0047-04
论文
基于自相关函数最大值的语音端点检测方法 - -
刘淑华 胡 强 覃团发 梁 琳
! ! !
广西大学 计算机与电子信息学院 广西 南宁
! 530004 #
摘 要 基于短时能量和隐马尔夫模型端点检测方法都有一定的局限性 笔者通过研究浊音的周期性及其自相
l l !
关函数通过低通滤波器后的特性 提出了基于自相关函数最大值的语音端点检测算法 实验结果表明 即使在较低
! ! !
信噪比情况下采用该算法仍能较准确地检测出语音信号的端点位置
关键词 端点检测 自相关 低通滤波器
l l # #
l中图分类号l TN912 l文献标识码l A
A Method of the Voice Endpoint Detection Based on Maximum of Autocorrelation Function
LIU Shu-hua HU Oiang OIN Tuan-fa LIANG Lin
CoIIege of Computer and EIectronic Information Guangxi University Nanning 530004 China )
Abstract Owing to the Iimitation in the appIication of the endpoint detection method based on the short energy
or hidden Markov modeI a new method based on the maximum of autocorreIation function is put forward. The
period of sonant and sonata!s autocorreIation function characteristics after autocorreIation function fiItered through a
Iowpass are studied. The experimentaI resuIts show that this method can detect the voice endpoint exactIy even in a
Iow SNR environment.
Key words endpoint detection ; autocorreIation
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