Performance of time-delay estimation in the presence of room reverberation

Author

Champagne, Benoît ; Bédard, Stéphane ; Stéphenne, Alex

Author_Institution

INRS Telecommun., Verdun, Que., Canada

Volume

4

Issue

2

fYear

1996

fDate

3/1/1996 12:00:00 AM

Firstpage

148

Lastpage

152

Abstract

Synthetic microphone signals generated with the image model technique are used to study the effects of room reverberation on the performance of the maximum likelihood (ML) estimator of the time delay, in which the estimate is obtained by maximizing the cross correlation between filtered versions of the microphone signals. The results underscore the adverse effects of reverberation on the bias, variance and probability of anomaly of the ML estimator. Explanations of these effects are provided

Keywords

acoustic correlation; acoustic signal processing; architectural acoustics; delays; filtering theory; maximum likelihood estimation; microphones; reverberation; bias; cross correlation; filtered microphone signals; image model technique; maximum likelihood estimator; performance; probability; room reverberation; synthetic microphone signals; time-delay estimation; variance; Delay estimation; Discrete cosine transforms; Filter bank; Filtering algorithms; Finite impulse response filter; Maximum likelihood estimation; Microphones; Reverberation; Signal processing algorithms; Speech processing;

fLanguage

English

Journal_Title

Speech and Audio Processing, IEEE Transactions on

Publisher

ieee

ISSN

1063-6676

Type

jour

DOI

10.1109/89.486067

Filename

486067