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Active control of outgoing noise fields in rooms

Ma, Fei; Zhang, Wen; Abhayapala, Thushara

Description

Current active noise control systems can cancel noises in a duct effectively. However, they are insufficient for suppressing complex noise fields in time-varying rooms. This paper develops an active noise control system that can cancel tonal noise fields produced by a primary source in a room. The problem of tonal noise field control is formulated as estimating and canceling the outgoing field on a sphere surrounding the primary source. The proposed system limits the energy of the primary...[Show more]

dc.contributor.authorMa, Fei
dc.contributor.authorZhang, Wen
dc.contributor.authorAbhayapala, Thushara
dc.date.accessioned2019-03-06T00:26:09Z
dc.identifier.issn0001-4966
dc.identifier.urihttp://hdl.handle.net/1885/156995
dc.description.abstractCurrent active noise control systems can cancel noises in a duct effectively. However, they are insufficient for suppressing complex noise fields in time-varying rooms. This paper develops an active noise control system that can cancel tonal noise fields produced by a primary source in a room. The problem of tonal noise field control is formulated as estimating and canceling the outgoing field on a sphere surrounding the primary source. The proposed system limits the energy of the primary source radiating out of the sphere, thereby creating a global quiet zone inside the room. In addition, it removes the need for online secondary path estimation with reduced influence on desired sound fields in the room. A method for estimating the outgoing field on a sphere is presented, together with a wave-domain algorithm for controlling the outgoing field. Simulations and hardware demonstrations show the proposed system can reduce tonal noise fields in a room and over a wide frequency range.
dc.description.sponsorshipThis work is sponsored by the Australian Research Council (ARC) Discovery Projects funding schemes with project Nos. DP140103412 and DP180102375. F.M. is supported by the China Scholarship Council—Australian National University Joint Funding Program.
dc.format.mimetypeapplication/pdf
dc.language.isoen_AU
dc.publisherAcoustical Society of America
dc.rights© 2018 Acoustical Society of America
dc.sourceThe Journal of the Acoustical Society of America
dc.titleActive control of outgoing noise fields in rooms
dc.typeJournal article
local.identifier.citationvolume144
dc.date.issued2018-09
local.publisher.urlhttps://acousticalsociety.org/
local.type.statusPublished Version
local.contributor.affiliationMa, Fei, ANU College of Engineering & Computer Science, The Australian National University
local.contributor.affiliationZhang, W., ANU College of Engineering & Computer Science, The Australian National University
local.contributor.affiliationAbhayapala, T., ANU College of Engineering & Computer Science, The Australian National University
dc.relationhttp://purl.org/au-research/grants/arc/DP140103412
dc.relationhttp://purl.org/au-research/grants/arc/DP180102375
local.identifier.essn1520-8524
local.bibliographicCitation.issue3
local.bibliographicCitation.startpage1589
local.bibliographicCitation.lastpage1599
local.identifier.doi10.1121/1.5055217
dcterms.accessRightsOpen Access
dc.provenancehttp://www.sherpa.ac.uk/romeo/issn/0001-4966/..." author can archive publisher's version/PDF. 6 months embargo" from SHERPA/RoMEO site (as at 06/03/19).
CollectionsANU Research Publications

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