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ICASSP
2011
IEEE

A generalized design method for directivity patterns of spherical microphone arrays

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A generalized design method for directivity patterns of spherical microphone arrays
Spherical microphone arrays provide a flexible solution to obtaining higher-order directivity patterns, which are useful in audio recording and reproduction. A general systematic approach to the design of directivity patterns for spherical microphone arrays is introduced in this paper. The directivity patterns are obtained by optimizing a cost function which is a convex combination of a front-back energy ratio and a smoothness term. Most of the standard directivity patterns - i.e. omnidirectional, cardioid, subcardioid, hypercardioid and supercardioid - are particular solutions of this optimization problem with specific values of two free parameters: the angle of the frontal sector, and the convex combination factor. By varying these two parameters, more general solutions of practical use are obtained.
Enzo De Sena, Hüseyin Hacihabiboglu, Zoran Cv
Added 21 Aug 2011
Updated 21 Aug 2011
Type Journal
Year 2011
Where ICASSP
Authors Enzo De Sena, Hüseyin Hacihabiboglu, Zoran Cvetkovic
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