Performance study of time delay estimation in a room environment [microphone arrays]

Author

Ming Jian ; Kot, Alex C. ; Er, Meng H.

Author_Institution

Sch. of Electr. & Electron. Eng., Nanyang Technol. Inst., Singapore

Volume

5

fYear

1998

fDate

31 May-3 Jun 1998

Firstpage

554

Abstract

Time delay estimation (TDE) is often used for source localization in microphone arrays and the performance of TDE is always affected by the reverberation in a room. In this paper, the performance of TDE in a rectangular room environment is studied for microphone arrays. The probability of anomalies of time delay estimates is obtained theoretically for the multi-path propagation in the room. The effects of the room reverberation on the TDE under different microphone patterns, microphone position configurations and spacings between the microphones are evaluated

Keywords

acoustic wave propagation; arrays; delays; echo; estimation theory; microphones; probability; reverberation; microphone arrays; microphone patterns; microphone position configurations; multipath propagation; probability; rectangular room environment; room reverberation; source localization; time delay estimation; Acoustic signal detection; Array signal processing; Delay effects; Delay estimation; Echo interference; Erbium; Estimation theory; Gaussian noise; Microphone arrays; Reverberation;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1998. ISCAS '98. Proceedings of the 1998 IEEE International Symposium on

Conference_Location

Monterey, CA

Print_ISBN

0-7803-4455-3

Type

conf

DOI

10.1109/ISCAS.1998.694581

Filename

694581