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Soundfield reproduction using theoretical continuous loudspeaker

Wu, Yan (Jennifer); Abhayapala, Thushara

Description

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...[Show more]

dc.contributor.authorWu, Yan (Jennifer)
dc.contributor.authorAbhayapala, Thushara
dc.coverage.spatialLas Vegas USA
dc.date.accessioned2015-12-07T22:19:00Z
dc.date.createdMarch 31-April 4 2008
dc.identifier.isbn1424414849
dc.identifier.urihttp://hdl.handle.net/1885/19114
dc.description.abstractReproduction 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.
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE Inc)
dc.relation.ispartofseriesIEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2008)
dc.sourceProceedings of IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2008)
dc.source.urihttp://ieeexplore.ieee.org/xpl/tocresult.jsp?isnumber=4517521&isYear=2008
dc.subjectKeywords: Acoustic field; Least Square LS method; Least square method; Matrix inversion; Acoustic signal processing; Acoustics; Curve fitting; Electroacoustic transducers; Geodesy; Least squares approximations; Matrix algebra; Signal processing; Speech; Loudspeaker Acoustic field; Least square method; Matrix inversion
dc.titleSoundfield reproduction using theoretical continuous loudspeaker
dc.typeConference paper
local.description.notesImported from ARIES
local.description.refereedYes
dc.date.issued2008
local.identifier.absfor090609 - Signal Processing
local.identifier.ariespublicationu2505865xPUB7
local.type.statusPublished Version
local.contributor.affiliationWu, Yan (Jennifer), College of Engineering and Computer Science, ANU
local.contributor.affiliationAbhayapala, Thushara, College of Engineering and Computer Science, ANU
local.description.embargo2037-12-31
local.bibliographicCitation.startpage377
local.bibliographicCitation.lastpage380
local.identifier.doi10.1109/ICASSP.2008.4517625
dc.date.updated2015-12-07T08:29:30Z
local.identifier.scopusID2-s2.0-51449099906
CollectionsANU Research Publications

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