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Acoustic Beamforming Exploiting Directionality of Human Speech Sources

Williamson, Robert; Betlehem, Terence


This paper examines the improvement that can be attained with perfect knowledge of the sound source directivity pattern and orientation in beamformer designs in the problem of speech acquisition. Data-independent beamformers are derived through formulation of a constrained optimization problem with a unity-gain constraint. Using computer simulation, these beamforming schemes are compared to the delay and sum (DS) beamformer and the best single sensor in a reverberant room environment. Criteria...[Show more]

CollectionsANU Research Publications
Date published: 2003
Type: Conference paper
Source: Proceedings IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2003 Volume IV


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