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Theory and design of high order sound field microphones using spherical microphone array

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2002

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Abhayapala, Thushara D.
Ward, Darren B.

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Abstract

A major problem in sound field reconstruction systems is how to record the higher order (> 1) harmonic components of a given sound field. Spherical harmonics analysis is used to establish theory and design of a higher order recording system, which comprises an array of small microphones arranged in a spherical configuration and associated signal processing. This result has implications to the advancement of future sound field reconstruction systems. An example of a third order system for operation over a 10:1 frequency range of 340 Hz to 3.4 kHz is given.

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http://www.scopus.com/inward/record.url?scp=0036296233&partnerID=8YFLogxK
 https://hdl.handle.net/1885/733754447

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ANU Research Publications

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Proceedings - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing

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10.1109/ICASSP.2002.5745011

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