Papers

Peer-reviewed
Aug, 2012

Reproducing Virtual Sound Sources in Front of a Loudspeaker Array Using Inverse Wave Propagator

IEEE TRANSACTIONS ON AUDIO SPEECH AND LANGUAGE PROCESSING
  • Shoichi Koyama
  • ,
  • Ken'ichi Furuya
  • ,
  • Yusuke Hiwasaki
  • ,
  • Yoichi Haneda

Volume
20
Number
6
First page
1746
Last page
1758
Language
English
Publishing type
Research paper (scientific journal)
DOI
10.1109/TASL.2012.2188514
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC

It has been possible to reproduce point sound sources between listeners and a loudspeaker array by using the focused-source method. However, this method requires physical parameters of the sound sources to be reproduced, such as source positions, directions, and original signals. This fact makes it difficult to apply the method to real-time reproduction systems because decomposing received signals into such parameters is not a trivial task. This paper proposes a method for recreating virtual sound sources in front of a planar or linear loudspeaker array. The method is based on wave field synthesis but extended to include the inverse wave propagator often used in acoustical holography. Virtual sound sources can be placed between listeners and a loudspeaker array even when the received signals of a microphone array equally aligned with the loudspeaker array are only known. Numerical simulation results are presented to compare the proposed and focused-source methods. A system was constructed consisting of linear microphone and loudspeaker arrays and measurement experiments were conducted in an anechoic room. When comparing the sound field reproduced using the proposed method with that using the focused-source method, it was found that the proposed method could reproduce the sound field at almost the same accuracy.

Link information
DOI
https://doi.org/10.1109/TASL.2012.2188514
DBLP
https://dblp.uni-trier.de/rec/journals/taslp/KoyamaFHH12
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000302532000007&DestApp=WOS_CPL
URL
http://dblp.uni-trier.de/db/journals/taslp/taslp20.html#journals/taslp/KoyamaFHH12
ID information
  • DOI : 10.1109/TASL.2012.2188514
  • ISSN : 1558-7916
  • DBLP ID : journals/taslp/KoyamaFHH12
  • Web of Science ID : WOS:000302532000007

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