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Accurate sound source localization in a reverberant environment using multiple acoustic sensors

Atmoko, H., Tan, D. C., Tian, G.Y. and Fazenda, Bruno (2008) Accurate sound source localization in a reverberant environment using multiple acoustic sensors. Measurement Science and Technology, 19 (2). 024003. ISSN 0957-0233

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    This paper introduces a new method for the estimation of sound source distance and direction
    using at least three microphone sensors in indoor environments. Unlike the other methods that
    normally use approximations in obtaining the time difference between sensors, this method
    exploits the existed geometrical relationships of the sensors to form an exact solution to
    estimating the source position. To overcome reverberation, an enhancing pre-process has been
    used for different sound sources with different spectra, e.g., single frequency, multiple
    frequencies and different noise shapes. Source direction and distances are estimated from time
    of sound wave travel and distances of acoustic sensors. Using the method described in this
    paper a level of 1◦ accuracy is obtained. Several experimental tests have been undertaken that
    verify the results. Conclusions and future work are also described.

    Item Type: Article
    Subjects: T Technology > TA Engineering (General). Civil engineering (General)
    Q Science > QC Physics
    Schools: School of Computing and Engineering
    Related URLs:
    Depositing User: Graham Stone
    Date Deposited: 03 Mar 2009 16:42
    Last Modified: 28 Jul 2010 19:31


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