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Conference Paper

Real-Time Sound Field Transmission System by Using Wave Field Reconstruction Filter and Its Subjective Listening Test

Authors: Koyama, Shoichi; Furuya, Ken'ichi; Uematsu, Hisashi; Hiwasaki, Yusuke; Haneda, Yoichi

AES Conference: 52nd International Conference: Sound Field Control - Engineering and Perception · Paper P-3 · September 2013

Abstract

For real-time transmission of a sound field in a large area, it is necessary to transform received signals of a microphone array into driving signals of a loudspeaker array to reproduce the sound field. We previously proposed a signal transform method for planar or linear arrays of microphones and loudspeakers that uses an analytically derived filter, called the wave field reconstruction filter (WFR filter). By using the WFR filter for linear arrays with 64 channels, we developed a prototype real-time sound field transmission system over an IP network. The results of the subjective listening tests indicated that the source localization accuracy for virtual sound sources is comparable to that for real sound sources in a large listening area.

Details

Published in
AES Conference: 52nd International Conference: Sound Field Control - Engineering and Perception
Paper number
P-3
Publication date
September 6, 2013
Session subject
Posters
Affiliation
NTT Corporation, Tokyo, Japan; Oita University, Oita, Japan; The University of Electro-Communications, Tokyo, Japan (See document for exact affiliation information.)
Type
Conference Paper