SOUND SOURCE LOCALIZATION IN A SECURITY SYSTEM USING A MICROPHONE ARRAY

Vera Behar, Ivan Garvanov

Abstract

A possible algorithm for sound source localization in a security system that is based on beamforming of a microphone array is described in this paper. It is shown that the adaptive beamforming algorithm, Minimum Variance Distortionless Response (MVDR), can be a part of the signal processing implemented in a security system. This signal processing includes the following stages: sound source localization, signal parameter estimation, signal priority analysis and, finally, control of protective and warning means (for example, video camera). The adaptive beamforming method MVDR is used for estimating the direction-of arrival (DOA) of signals generated by different sound sources, which arrive at the microphone array from different directions of the protected area. The scenario, in which four sound sources located at different points of the protected area generate different sound signals (warning, alarm, emergency and natural noise), is simulated in order to verify the algorithm for DOA estimation. The simulation results show that an adaptive microphone array can be successfully used for accurate localization of all sound sources in the observation area. The parallel version of the described algorithm is tested in Blue Gene environment using the interface MPI.

References

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Paper Citation


in Harvard Style

Behar V., Kabakchiev H. and Garvanov I. (2013). SOUND SOURCE LOCALIZATION IN A SECURITY SYSTEM USING A MICROPHONE ARRAY . In Proceedings of the Second International Conference on Telecommunications and Remote Sensing - Volume 1: ICTRS, ISBN 978-989-8565-57-0, pages 85-94. DOI: 10.5220/0004785700850094


in Bibtex Style

@conference{ictrs13,
author={Vera Behar and Hristo Kabakchiev and Ivan Garvanov},
title={SOUND SOURCE LOCALIZATION IN A SECURITY SYSTEM USING A MICROPHONE ARRAY},
booktitle={Proceedings of the Second International Conference on Telecommunications and Remote Sensing - Volume 1: ICTRS,},
year={2013},
pages={85-94},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0004785700850094},
isbn={978-989-8565-57-0},
}


in EndNote Style

TY - CONF
JO - Proceedings of the Second International Conference on Telecommunications and Remote Sensing - Volume 1: ICTRS,
TI - SOUND SOURCE LOCALIZATION IN A SECURITY SYSTEM USING A MICROPHONE ARRAY
SN - 978-989-8565-57-0
AU - Behar V.
AU - Kabakchiev H.
AU - Garvanov I.
PY - 2013
SP - 85
EP - 94
DO - 10.5220/0004785700850094