Reconstruction of sound fields with a spherical microphone array

Fernandez-Grande, E and Walton, T ORCID: https://orcid.org/0000-0002-4091-0506 2014, 'Reconstruction of sound fields with a spherical microphone array' , INTER-NOISE and NOISE-CON Congress and Conference Proceedings, 249 (2) , pp. 5530-5537.

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Abstract

Spherical microphone arrays are very well suited for sound field measurements in enclosures or interior spaces, and generally in acoustic environments where sound waves impinge on the array from multiple directions. Because of their directional properties, they make it possible to resolve sound waves traveling in any direction. In particular, rigid sphere microphone arrays are robust, and have the favorable property that the scattering introduced by the array can be compensated for-making the array virtually transparent. This study examines a recently proposed sound field reconstruction method based on a point source expansion, ie equivalent source method, using a rigid spherical array. The study examines the capability of the method to distinguish between sound waves arriving from different directions (ie, as a sound field separation method). This is representative of the potential of the method to perform sound field identification and visualization in non-anechoic spaces, and ultimately for general in-situ measurements.

Item Type: Article
Schools: Schools > School of Computing, Science and Engineering
Journal or Publication Title: INTER-NOISE and NOISE-CON Congress and Conference Proceedings
Publisher: Institute of Noise Control Engineering
ISSN: 0736-2935
Related URLs:
Funders: The Danish Council for Independent Research DFF-FTP
Depositing User: T Walton
Date Deposited: 27 May 2022 11:13
Last Modified: 27 May 2022 11:13
URI: http://usir.salford.ac.uk/id/eprint/63948

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