Designing a spherical microphone array for the directional analysis of reflections and reverberation

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ConferenceAudio Engineering Society 115th Convention: 10 October 2003, New York, N.Y.
Pages111; # of pages: 11
Subjectmicrophone array, reverberation, diffuseness; Acoustics
AbstractSpherical microphone array designs were investigated from the point of view of suitability for directionalanalysis of reverberant sound fields. Four array geometries (tetrahedron, cube, dodecahedron, geodesicsphere) were considered. Beamforming filters were designed using a constrained gain maximization process.The theoretical performance of each array was then predicted. A room acoustic simulator was used to helpassess sufficient directionality and evaluate the suitability of each design. A 32-element geodesic sphere arraywas constructed and used to make directional measurements in real sound fields.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number46626
NPARC number20378488
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Record identifierc50280c7-e6d7-4fab-9bf7-fce6f6bd5988
Record created2012-07-24
Record modified2016-05-09
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