Soundfield reproduction using theoretical continuous loudspeaker

Yan Jennifer Wu; Thushara D. Abhayapala

doi:10.1109/ICASSP.2008.4517625

Soundfield reproduction using theoretical continuous loudspeaker

Yan Jennifer Wu, Thushara D. Abhayapala

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

14 Citations (Scopus)

Abstract

Reproduction of a soundfield is a fundamental problem in acoustic signal processing. A common approach is to use an array of loudspeakers to reproduce the desired field where the least square method is used to calculate the loudspeaker weights. However, the least square method involves matrix inversion which may lead to errors if the matrix is poorly conditioned. In this paper, we derive a new theoretical continuous loudspeaker method to obtain the loudspeaker aperture function in order to avoid matrix inversion. In addition, the aperture function obtained through continuous loudspeaker method reveals the underlying structure of the solution as a function of the desired soundfield, the loudspeaker positions and the frequency. Results are verified through simulations.

Original language	English
Title of host publication	2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP
Pages	377-380
Number of pages	4
DOIs	https://doi.org/10.1109/ICASSP.2008.4517625
Publication status	Published - 2008
Event	2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP - Las Vegas, NV, United States Duration: 31 Mar 2008 → 4 Apr 2008

Publication series

Name	ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
ISSN (Print)	1520-6149

Conference

Conference	2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP
Country/Territory	United States
City	Las Vegas, NV
Period	31/03/08 → 4/04/08

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10.1109/ICASSP.2008.4517625

Cite this

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title = "Soundfield reproduction using theoretical continuous loudspeaker",

abstract = "Reproduction of a soundfield is a fundamental problem in acoustic signal processing. A common approach is to use an array of loudspeakers to reproduce the desired field where the least square method is used to calculate the loudspeaker weights. However, the least square method involves matrix inversion which may lead to errors if the matrix is poorly conditioned. In this paper, we derive a new theoretical continuous loudspeaker method to obtain the loudspeaker aperture function in order to avoid matrix inversion. In addition, the aperture function obtained through continuous loudspeaker method reveals the underlying structure of the solution as a function of the desired soundfield, the loudspeaker positions and the frequency. Results are verified through simulations.",

keywords = "Acoustic field, Least square method, Matrix inversion",

author = "Wu, {Yan Jennifer} and Abhayapala, {Thushara D.}",

year = "2008",

doi = "10.1109/ICASSP.2008.4517625",

language = "English",

isbn = "1424414849",

series = "ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings",

pages = "377--380",

booktitle = "2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP",

note = "2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP ; Conference date: 31-03-2008 Through 04-04-2008",

}

Wu, YJ & Abhayapala, TD 2008, Soundfield reproduction using theoretical continuous loudspeaker. in 2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP., 4517625, ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings, pp. 377-380, 2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP, Las Vegas, NV, United States, 31/03/08. https://doi.org/10.1109/ICASSP.2008.4517625

Soundfield reproduction using theoretical continuous loudspeaker. / Wu, Yan Jennifer; Abhayapala, Thushara D.
2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP. 2008. p. 377-380 4517625 (ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Soundfield reproduction using theoretical continuous loudspeaker

AU - Wu, Yan Jennifer

AU - Abhayapala, Thushara D.

PY - 2008

Y1 - 2008

N2 - Reproduction of a soundfield is a fundamental problem in acoustic signal processing. A common approach is to use an array of loudspeakers to reproduce the desired field where the least square method is used to calculate the loudspeaker weights. However, the least square method involves matrix inversion which may lead to errors if the matrix is poorly conditioned. In this paper, we derive a new theoretical continuous loudspeaker method to obtain the loudspeaker aperture function in order to avoid matrix inversion. In addition, the aperture function obtained through continuous loudspeaker method reveals the underlying structure of the solution as a function of the desired soundfield, the loudspeaker positions and the frequency. Results are verified through simulations.

AB - Reproduction of a soundfield is a fundamental problem in acoustic signal processing. A common approach is to use an array of loudspeakers to reproduce the desired field where the least square method is used to calculate the loudspeaker weights. However, the least square method involves matrix inversion which may lead to errors if the matrix is poorly conditioned. In this paper, we derive a new theoretical continuous loudspeaker method to obtain the loudspeaker aperture function in order to avoid matrix inversion. In addition, the aperture function obtained through continuous loudspeaker method reveals the underlying structure of the solution as a function of the desired soundfield, the loudspeaker positions and the frequency. Results are verified through simulations.

KW - Acoustic field

KW - Least square method

KW - Matrix inversion

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U2 - 10.1109/ICASSP.2008.4517625

DO - 10.1109/ICASSP.2008.4517625

M3 - Conference contribution

SN - 1424414849

SN - 9781424414840

T3 - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings

SP - 377

EP - 380

BT - 2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP

T2 - 2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP

Y2 - 31 March 2008 through 4 April 2008

ER -

Soundfield reproduction using theoretical continuous loudspeaker

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