计算机工程与应用 ›› 2009, Vol. 45 ›› Issue (20): 246-248.DOI: 10.3778/j.issn.1002-8331.2009.20.072

• 工程与应用 • 上一篇    

室内语音源定位技术中的时间延迟估计方法

杨 涛   

  1. 桂林电子科技大学 信息材料科学与工程系,广西 桂林 541004
  • 收稿日期:2008-04-15 修回日期:2008-07-07 出版日期:2009-07-11 发布日期:2009-07-11
  • 通讯作者: 杨 涛

Time-delay estimation of speech source location in room

YANG Tao   

  1. Department of Information Material Science and Engineering,Guilin University of Electronic Technology,Guilin,Guangxi 541004,China
  • Received:2008-04-15 Revised:2008-07-07 Online:2009-07-11 Published:2009-07-11
  • Contact: YANG Tao

摘要: 针对室内的脉冲噪声居多的情况下,结合语音信号的特征,提出了基于声门脉冲提取的分数低阶协方差时延估计方法(LPC+FLOC),通过理论分析和仿真实验表明,具有较好的时延估计有效率,且抗混响能力较强,比较适合室内的语音源定位。

关键词: 时间延迟, 噪声特性, 分数低阶协方差, 声门脉冲, 线性预测

Abstract: This paper proposes a new method of time-delay estimation under the complicated room acoustic environment including most of impulse noise.Based on the characteristic of speech,the time-delay can be estimated by computing the fractional low-order covariance after the extraction of the glottal pulse information.The results show that the method takes on the high performance with the strong anti-reverberant and anti-noise,and is suitable for the speech source location in room.

Key words: time-delay, noise characteristic, Fractional Low-Order Covariance(FLOC), glottal pulses, Linear Prediction(LPC)