@inproceedings{73a8b6345c39418ea786f4a305b9927b,
title = "Alternatives to spherical microphone arrays: Hybrid geometries",
abstract = "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 hybrid array geometries. As an illustration, we design and simulate a fifth order spherical harmonic decomposition array using 70 microphones to operate over a frequency band of an octave.",
keywords = "Hybrid array, Microphone arrays, Soundfield, Spherical harmonics, Spherical microphone array",
author = "Abhayapala, {Thushara D.} and Aastha Gupta",
year = "2009",
doi = "10.1109/icassp.2009.4959525",
language = "English",
isbn = "9781424423545",
series = "ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "81--84",
booktitle = "2009 IEEE International Conference on Acoustics, Speech, and Signal Processing - Proceedings, ICASSP 2009",
address = "United States",
note = "2009 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2009 ; Conference date: 19-04-2009 Through 24-04-2009",
}