L. Xiao, T. Collins, and Y. Sun (UK)
Detection and estimation, time delay estimation, source localization, human computer interaction
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.
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