Determining Sound Source Orientation from Source Directivity and Multi-microphone Recordings

  • Francesco Guarato
  • John C. T. Hallam
Part of the Lecture Notes in Computer Science book series (LNCS, volume 5602)


This paper presents an analytic method for determining the orientation of a directional sound source in three-dimensional space using the source position, directivity and multi-microphone recordings. The acoustic signal emitted by the source is assumed to be broadband, such as a down-swept frequency modulated chirp of the kind many bats use while echolocating. The method has been tested in simulations on PC using the directivity of a piston transducer and the more complex and more realistic head-related transfer function of the Phyllostomus discolor bat. The ultimate purpose of the work is to determine the orientation and actual emitted call of a flying bat from a remote array recording.


Acoustic Signal Sound Source Elevation Angle Source Directivity Source Orientation 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  • Francesco Guarato
    • 1
  • John C. T. Hallam
    • 1
  1. 1.Mærsk Mc-Kinney Møller InstituteUniversity of Southern DenmarkDenmark

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