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Alternative to spherical microphone arrays: Hybrid geometries

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dc.contributor.authorGupta, Aastha
dc.contributor.authorAbhayapala, Thushara
dc.coverage.spatialTaipei Taiwan
dc.date.accessioned2015-12-10T22:23:56Z
dc.date.createdApril 19-24 2009
dc.date.issued2009
dc.date.updated2016-02-24T10:59:33Z
dc.description.abstractWe present a novel theory and design for constructing microphone arrays to extract spherical harmonic components from soundfields. The proposed non-spherical array structure provides a flexible and alternative design to the traditional spherical microphone arrays with lesser restriction on sensor locations. We use the properties of the associated Legendre functions and the spherical Bessel functions to develop a systematic approach to place circular microphone arrays in three dimensions for hybrid array geometries. As an illustration, we design and simulate a fifth order spherical harmonic decomposition array using 70 microphones to operate over a frequency band of an octave.
dc.identifier.isbn9781424423545
dc.identifier.urihttp://hdl.handle.net/1885/53035
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE Inc)
dc.relation.ispartofseriesIEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2009)
dc.sourceProceedings of IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2009)
dc.subjectKeywords: Hybrid array; Microphone arrays; Soundfield; Spherical harmonics; Spherical microphone array; Acoustic signal processing; Acoustics; Frequency bands; Harmonic analysis; Microphones; Signal processing; Spheres Hybrid array; Microphone arrays; Soundfield; Spherical harmonics; Spherical microphone array
dc.titleAlternative to spherical microphone arrays: Hybrid geometries
dc.typeConference paper
local.bibliographicCitation.lastpage84
local.bibliographicCitation.startpage81
local.contributor.affiliationAbhayapala, Thushara, College of Engineering and Computer Science, ANU
local.contributor.affiliationGupta, Aastha, College of Engineering and Computer Science, ANU
local.contributor.authoruidAbhayapala, Thushara, u9701943
local.contributor.authoruidGupta, Aastha, u2505865
local.description.embargo2037-12-31
local.description.notesImported from ARIES
local.description.refereedYes
local.identifier.absfor090609 - Signal Processing
local.identifier.ariespublicationu4334215xPUB262
local.identifier.doi10.1109/ICASSP.2009.4959525
local.identifier.scopusID2-s2.0-70349471187
local.identifier.thomsonID000268919200021
local.type.statusPublished Version

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