Real-Time Sound Field Transmission System by Using Wave Field Reconstruction Filter and Its Evaluation
Summary :
A new real-time sound field transmission system is presented. To construct this system, a large listening area needs to be reproduced at not less than a constant height. Additionally, the driving signals of the loudspeakers should be obtained only from received signals of microphones. Wave field reconstruction (WFR) filtering for linear arrays of microphones and loudspeakers is considered to be suitable for this kind of system. An experimental system was developed to show the feasibility of real-time sound field transmission using the WFR filter. Experiments to measure the reproduced sound field and a subjective listening test of sound localization were conducted to evaluate the proposed system. Although the reproduced sound field included several artifacts such as spatial aliasing and faster amplitude decay, the experimental results indicated that the proposed system was able to provide sound localization accuracy for virtual sound sources comparable to that for real sound sources in a large listening area.
- Publication
- IEICE TRANSACTIONS on Fundamentals Vol.E97-A No.9 pp.1840-1848
- Publication Date
- 2014/09/01
- Publicized
- Online ISSN
- 1745-1337
- DOI
- 10.1587/transfun.E97.A.1840
- Type of Manuscript
- Special Section PAPER (Special Section on Spatial Acoustic Signal Processing and Applications)
- Category
Authors
Shoichi KOYAMA
NTT Corporation
Ken'ichi FURUYA
Oita University
Hisashi UEMATSU
NTT Corporation
Yusuke HIWASAKI
NTT Corporation
Yoichi HANEDA
The University of Electro-Communications
Keyword
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Shoichi KOYAMA, Ken'ichi FURUYA, Hisashi UEMATSU, Yusuke HIWASAKI, Yoichi HANEDA, "Real-Time Sound Field Transmission System by Using Wave Field Reconstruction Filter and Its Evaluation" in IEICE TRANSACTIONS on Fundamentals,
vol. E97-A, no. 9, pp. 1840-1848, September 2014, doi: 10.1587/transfun.E97.A.1840.
Abstract: A new real-time sound field transmission system is presented. To construct this system, a large listening area needs to be reproduced at not less than a constant height. Additionally, the driving signals of the loudspeakers should be obtained only from received signals of microphones. Wave field reconstruction (WFR) filtering for linear arrays of microphones and loudspeakers is considered to be suitable for this kind of system. An experimental system was developed to show the feasibility of real-time sound field transmission using the WFR filter. Experiments to measure the reproduced sound field and a subjective listening test of sound localization were conducted to evaluate the proposed system. Although the reproduced sound field included several artifacts such as spatial aliasing and faster amplitude decay, the experimental results indicated that the proposed system was able to provide sound localization accuracy for virtual sound sources comparable to that for real sound sources in a large listening area.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.E97.A.1840/_p
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@ARTICLE{e97-a_9_1840,
author={Shoichi KOYAMA, Ken'ichi FURUYA, Hisashi UEMATSU, Yusuke HIWASAKI, Yoichi HANEDA, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Real-Time Sound Field Transmission System by Using Wave Field Reconstruction Filter and Its Evaluation},
year={2014},
volume={E97-A},
number={9},
pages={1840-1848},
abstract={A new real-time sound field transmission system is presented. To construct this system, a large listening area needs to be reproduced at not less than a constant height. Additionally, the driving signals of the loudspeakers should be obtained only from received signals of microphones. Wave field reconstruction (WFR) filtering for linear arrays of microphones and loudspeakers is considered to be suitable for this kind of system. An experimental system was developed to show the feasibility of real-time sound field transmission using the WFR filter. Experiments to measure the reproduced sound field and a subjective listening test of sound localization were conducted to evaluate the proposed system. Although the reproduced sound field included several artifacts such as spatial aliasing and faster amplitude decay, the experimental results indicated that the proposed system was able to provide sound localization accuracy for virtual sound sources comparable to that for real sound sources in a large listening area.},
keywords={},
doi={10.1587/transfun.E97.A.1840},
ISSN={1745-1337},
month={September},}
Copy
TY - JOUR
TI - Real-Time Sound Field Transmission System by Using Wave Field Reconstruction Filter and Its Evaluation
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 1840
EP - 1848
AU - Shoichi KOYAMA
AU - Ken'ichi FURUYA
AU - Hisashi UEMATSU
AU - Yusuke HIWASAKI
AU - Yoichi HANEDA
PY - 2014
DO - 10.1587/transfun.E97.A.1840
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E97-A
IS - 9
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - September 2014
AB - A new real-time sound field transmission system is presented. To construct this system, a large listening area needs to be reproduced at not less than a constant height. Additionally, the driving signals of the loudspeakers should be obtained only from received signals of microphones. Wave field reconstruction (WFR) filtering for linear arrays of microphones and loudspeakers is considered to be suitable for this kind of system. An experimental system was developed to show the feasibility of real-time sound field transmission using the WFR filter. Experiments to measure the reproduced sound field and a subjective listening test of sound localization were conducted to evaluate the proposed system. Although the reproduced sound field included several artifacts such as spatial aliasing and faster amplitude decay, the experimental results indicated that the proposed system was able to provide sound localization accuracy for virtual sound sources comparable to that for real sound sources in a large listening area.
ER -
English
