Sound source localization for circular arrays of directional microphones

Previous research in sound source localization has helped increase the robustness of estimates to noise and reverberation. Circular arrays are of particular interest for a number of scenarios, particularly because they can be placed in the center of the sources. First, that improves the sound captur...

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Bibliographic Details
Published in:Proceedings. (ICASSP '05). IEEE International Conference on Acoustics, Speech, and Signal Processing, 2005 Vol. 3; pp. iii/93 - iii/96 Vol. 3
Main Authors: Rui, Y., Florencio, D., Lam, W., Jinyan Su
Format: Conference Proceeding
Language:English
Published: IEEE 2005
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Summary:Previous research in sound source localization has helped increase the robustness of estimates to noise and reverberation. Circular arrays are of particular interest for a number of scenarios, particularly because they can be placed in the center of the sources. First, that improves the sound capture due to the reduced distance. Second, it helps on the direction estimation, not only because of the reduced distance, but also because it increases the angle differences. Nevertheless, most research on circular arrays focused on the case of omni-directional microphones. In this paper, we present a new algorithm for sound source localization developed specifically for directional microphones. Results obtained from real meeting room setups show a typical error of less than 3 degrees.
ISBN:9780780388741
0780388747
ISSN:1520-6149
2379-190X
DOI:10.1109/ICASSP.2005.1415654