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.