Evaluation of Microphone Array Based on Diffused Sensing with Various Filter Design Methods

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dc.contributor.author Niwa, K en
dc.contributor.author Hioka, Yusuke en
dc.contributor.author Kobayashi, K en
dc.contributor.author Furuya, K en
dc.contributor.author Haneda, Y en
dc.coverage.spatial Marrakech en
dc.date.accessioned 2015-01-08T03:27:21Z en
dc.date.issued 2013-09 en
dc.identifier.citation Proceedings of the 21st European Signal Processing Conference (EUSIPCO 2013), 2013, pp. 1 - 5 en
dc.identifier.issn 2219-5491 en
dc.identifier.uri http://hdl.handle.net/2292/24016 en
dc.description.abstract We investigated methods for achieving sharp directivity over a broad frequency range by using a multichannel inverse filter. We previously proposed the diffused sensing method for segregating sound sources by decorrelating the transfer functions of each sound source by placing an array in a diffused acoustic field. Because many transfer functions must be measured in advance in our previous method, we discuss how to achieve sharp directivity based on diffused sensing using only a few pre-measurements. As a physical phenomenon, transfer functions are expected to be decorrelated automatically in a diffused acoustic field. By exploiting this property, we found that sharp directivity could be achieved with the multichannel inverse filter, which dereverberates the target paths only. Through simulations, we show that to achieve sharp directivity, the length of the multichannel inverse filter should be the same as the impulse response length. en
dc.publisher IEEE en
dc.relation.ispartof 21st European Signal Processing Conference (EUSIPCO 2013) en
dc.relation.ispartofseries Proceedings of the 21st European Signal Processing Conference (EUSIPCO 2013) en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. en
dc.rights.uri https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm en
dc.title Evaluation of Microphone Array Based on Diffused Sensing with Various Filter Design Methods en
dc.type Conference Item en
pubs.begin-page 1 en
dc.rights.holder Copyright: IEEE en
pubs.author-url http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6811464 en
pubs.end-page 5 en
pubs.finish-date 2013-09-13 en
pubs.start-date 2013-09-09 en
dc.rights.accessrights http://purl.org/eprint/accessRights/RestrictedAccess en
pubs.subtype Proceedings en
pubs.elements-id 448913 en
pubs.org-id Engineering en
pubs.org-id Mechanical Engineering en
pubs.record-created-at-source-date 2014-08-07 en

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