Adaptive filtering exploiting band-limited property of sound field in the wave domain

Author

Emura, Satoru ; Hiwasaki, Yusuke ; Ohmuro, Hitoshi

Author_Institution

NTT Media Intell. Labs., NTT Corp., USA

fYear

2013

Firstpage

625

Lastpage

629

Abstract

Massive multichannel sound reproduction is necessary for highly immersive full-duplex communication. Efficient echo cancellation between massive loudspeakers and microphones is indispensable, and wave-domain adaptive filtering reduces the computational complexity drastically. We propose to further reduce this complexity by exploiting the band-limited property that the sound field has in the space-time-frequency representation. Experimental evaluations support the applicability of the proposed method.

Keywords

acoustic signal processing; adaptive filters; computational complexity; echo suppression; loudspeakers; microphones; sound reproduction; time-frequency analysis; band-limited property; computational complexity reduction; echo cancellation; highly immersive full-duplex communication; massive loudspeakers; massive multichannel sound reproduction; microphones; sound field; space-time-frequency representation; wave-domain adaptive filtering; Abstracts; Adaptive filters; Arrays; Microphones; adaptive filtering; space-time-frequency representation; wave domain;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech and Signal Processing (ICASSP), 2013 IEEE International Conference on

Conference_Location

Vancouver, BC

ISSN

1520-6149

Type

conf

DOI

10.1109/ICASSP.2013.6637723

Filename

6637723