Acoustic source localization for human computer interaction

Authors:
Lejun Xiao;Tim Collins;Ying Sun
Affiliations:
Department of Electronic, Electrical and Computer Engineering, University of Birmingham, Edgbaston, Birmingham, UK;Department of Electronic, Electrical and Computer Engineering, University of Birmingham, Edgbaston, Birmingham, UK;Department of Electronic, Electrical and Computer Engineering, University of Birmingham, Edgbaston, Birmingham, UK
Venue:
SPPRA'06 Proceedings of the 24th IASTED international conference on Signal processing, pattern recognition, and applications
Year:
2006

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Abstract

Acoustic source localization is important to the design and implementation of tangible acoustic interfaces for human computer interaction. In the paper, characteristics of acoustic sources for human computer interaction are studied. A time delay estimation method based on phase transform and smoothed coherence transform was chosen for the application to suppress the reverberation and background noise from environment. Practical acoustic sources are used to test the method under real reverberation conditions. MATLAB simulations and test results show that the method is effective and robust for passive acoustic source localization.