Acoustic analysis by spherical microphone array with optimal beamforming

Boaz Rafaely, Dima Khaykin

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Spatial acoustic analysis is employed in room acoustics studies, noise source characterization, and other applications. Spherical microphone arrays are particularly useful for spatial acoustic analysis because they offer three-dimensional analysis capabilities. Recently, various array processing methods for spherical microphone arrays have been developed. In particular, optimal beamforming methods may offer improved performance in realistic sound fields, facilitating spatial analysis with improved spatial resolution, reduced noise, and more accurate estimation of arrival directions. This paper presents recent results in optimal spherical array processing, from regular and Dolph-Chebyshev beamforming to subspace methods, presenting examples of acoustic analysis for sound field measured in an auditorium.

Original languageEnglish
Title of host publication38th International Congress and Exposition on Noise Control Engineering 2009, INTER-NOISE 2009
Pages4539-4543
Number of pages5
StatePublished - 1 Dec 2009
Event38th International Congress and Exposition on Noise Control Engineering 2009, INTER-NOISE 2009 - Ottawa, ON, Canada
Duration: 23 Aug 200926 Aug 2009

Publication series

Name38th International Congress and Exposition on Noise Control Engineering 2009, INTER-NOISE 2009
Volume7

Conference

Conference38th International Congress and Exposition on Noise Control Engineering 2009, INTER-NOISE 2009
Country/TerritoryCanada
CityOttawa, ON
Period23/08/0926/08/09

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