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2.5D multizone reproduction using weighted mode matching: Performance analysis and experimental validation

Zhang, Junqing; Zhang, Wen; Zhang, Lijun; Abhayapala, Thushara

Description

Mode-matching based multizone reproduction has been mainly focused on a purely two-dimensional (2D) theory, where infinite-long 2D secondary sources are assumed for 2D multizone reproduction. Its extension to the three-dimensional (3D) case requires more secondary sources and a higher computational complexity. This work investigates a more practical setup to use 3D sound sources as secondary sources for multizone reproduction in a 2D horizontal plane, i.e., 2.5D multizone reproduction. A...[Show more]

dc.contributor.authorZhang, Junqing
dc.contributor.authorZhang, Wen
dc.contributor.authorZhang, Lijun
dc.contributor.authorAbhayapala, Thushara
dc.date.accessioned2020-12-23T01:41:01Z
dc.date.available2020-12-23T01:41:01Z
dc.identifier.issn0001-4966
dc.identifier.urihttp://hdl.handle.net/1885/219045
dc.description.abstractMode-matching based multizone reproduction has been mainly focused on a purely two-dimensional (2D) theory, where infinite-long 2D secondary sources are assumed for 2D multizone reproduction. Its extension to the three-dimensional (3D) case requires more secondary sources and a higher computational complexity. This work investigates a more practical setup to use 3D sound sources as secondary sources for multizone reproduction in a 2D horizontal plane, i.e., 2.5D multizone reproduction. A weighted mode-matching approach is proposed to solve the dimensionality mismatch between the 2D desired sound field and 3D reproduced sound field. The weighting is based on an integral of Bessel-spherical harmonic modes over the entire control region. A detailed analysis of the weighting function is provided to show that the proposed method controls all the reproduction modes present on the 2D plane to minimize the reproduction error. The method is validated in both simulation-based and hardware-based experiments. The results demonstrate that in comparison with the conventional sectorial mode-matching method, the proposed approach can achieve more accurate reproduction over a wide frequency range and a large control region. 2020 Acoustical Society of America.
dc.description.sponsorshipThis work was supported by the National Natural Science Foundation of China (NSFC) funding scheme under Project No. 61671380.
dc.format.mimetypeapplication/pdf
dc.language.isoen_AU
dc.publisherAcoustical Society of America
dc.rights© 2020 Acoustical Society of America.
dc.sourceJournal of the Acoustical Society of America
dc.title2.5D multizone reproduction using weighted mode matching: Performance analysis and experimental validation
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume147
dcterms.dateAccepted2020-02-06
dc.date.issued2020-03-02
local.identifier.absfor090609 - Signal Processing
local.identifier.ariespublicationa383154xPUB11265
local.publisher.urlhttps://asa.scitation.org/
local.type.statusPublished Version
local.contributor.affiliationZhang, Junqing, Northwestern Polytechnical University
local.contributor.affiliationZhang, Wen, Northwestern Polytechnical University
local.contributor.affiliationZhang, Lijun, Northwestern Polytechnical University
local.contributor.affiliationAbhayapala, Pallage (Thushara), College of Engineering and Computer Science, ANU
local.bibliographicCitation.issue3
local.bibliographicCitation.startpage1404
local.bibliographicCitation.lastpage1417
local.identifier.doi10.1121/10.0000797
local.identifier.absseo970109 - Expanding Knowledge in Engineering
dc.date.updated2020-09-27T08:16:10Z
dcterms.accessRightsOpen Access
dc.provenancehttps://v2.sherpa.ac.uk/id/publication/4049..."Published version can be made open access on institutional repository after 6 month embargo" from SHERPA/RoMEO site (as at 23.12.20).
CollectionsANU Research Publications

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