基于声门闭合瞬间检测的时延算法研究  

Time Delay Estimation Based on the Estimation of Glottal Closure Instant

作　　者：刘庆华[1] 

机构地区：[1]桂林电子科技大学通信与信息工程系,广西桂林541004

出　　处：《电声技术》2006年第9期45-49,53,共6页Audio Engineering

基　　金：国家自然科学基金(60272038);广西青年科学基金(0447052)

摘　　要：阐述了基于声门闭合瞬间检测的时延估计方法基本原理,研究了基于希尔伯特变换的线性预测残留误差时延估计法提取时延的方法,并与最大似然广义互相关方法进行了性能分析和比较,结果表明线性预测残留误差的均方偏差最小,抗混响能力强,运算量适中,便于实时实现。The theory of time delay estimation based on the estimation of glottal closure instant and the time delay estimation using the linear prediction residue error which compared with generalized cross correlation are studied. The results shows that the linear prediction residue error which is easy for real-time implement are robust with the little root of variance and the ability of anti-reverberation.

关 键 词：时间延迟 声门闭合瞬间 线性预测残留误差 广义互相关 

分 类 号：TN912.3[电子电信—通信与信息系统]