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Alternative to spherical microphone arrays: Hybrid geometries

Abhayapala, Thushara; Gupta, Aastha


We 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...[Show more]

CollectionsANU Research Publications
Date published: 2009
Type: Conference paper
Source: Proceedings of IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2009)
DOI: 10.1109/ICASSP.2009.4959525


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