Sound direction recognition using a condenser microphone array

Kai-Tai Song, Jian Liang Chen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Scopus citations

Abstract

This paper presents a sound direction recognition system for intelligent mobile robots. We studied the analysis, design, and circuit realization of a standalone sound recognition system using multiple condenser microphones. Sound signals from three condenser microphones are integrated in a circuit to resolve the source direction. The minimum recognition angle of a triangular configuration is derived. A new decode method is proposed in this paper to resolve the sound direction. The proposed scheme uses a circuit to obtain direction information, an improvement to the conventional computer-based approaches. The recognition circuitry has been implemented using UMC 0.5/spl mu/m IC chip fabrication technology. Both simulation and practical experiments validate the desired performance. Experimental results show that the system recognizes sound direction with an accuracy of /spl plusmn/5/spl deg/. The sound recognition system has been integrated to a multi-robot system to investigate various robot control applications using whistle sound in a noisy environment. Experimental results demonstrate the effectiveness of the proposed method.

Original languageEnglish
Title of host publicationProceedings - 2003 IEEE International Symposium on Computational Intelligence in Robotics and Automation
Subtitle of host publicationComputational Intelligence in Robotics and Automation for the New Millennium
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1445-1450
Number of pages6
ISBN (Electronic)0780378660
DOIs
StatePublished - 1 Jan 2003
Event2003 IEEE International Symposium on Computational Intelligence in Robotics and Automation, CIRA 2003 - Kobe, Japan
Duration: 16 Jul 200320 Jul 2003

Publication series

NameProceedings of IEEE International Symposium on Computational Intelligence in Robotics and Automation, CIRA
Volume3

Conference

Conference2003 IEEE International Symposium on Computational Intelligence in Robotics and Automation, CIRA 2003
CountryJapan
CityKobe
Period16/07/0320/07/03

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  • Cite this

    Song, K-T., & Chen, J. L. (2003). Sound direction recognition using a condenser microphone array. In Proceedings - 2003 IEEE International Symposium on Computational Intelligence in Robotics and Automation: Computational Intelligence in Robotics and Automation for the New Millennium (pp. 1445-1450). [1222210] (Proceedings of IEEE International Symposium on Computational Intelligence in Robotics and Automation, CIRA; Vol. 3). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/CIRA.2003.1222210