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dc.contributor.authorDavis, Alan
dc.contributor.authorLow, Siow Yong
dc.contributor.authorNordholm, Sven
dc.contributor.authorGrbic, Nedelko
dc.contributor.editorIEEE Signal Processing Society
dc.identifier.citationDavis, A. and Low, S.Y. and Nordholm, S. and Grbic, N. 2005. A Subband Space Constrained Beamformer Incorporating Voice Activity Detection, in IEEE International Conference on Acoustic, Speech, and Signal Processing, Mar 18-23 2005, pp. III-65-III-68. Philadelphia, Pennsylvania, USA: IEEE.

This paper introduces a new subband adaptive space constrained beamforming structure for use in hands-free speech enhancement applications. The scheme incorporates a space constrained source model and voice activity information through the integration of a voice activity detector (VAD). The VAD information is used to estimate noise covariance information during non-speech periods and to optimally estimate the source power spectral density (PSD), which is used to provide a spectrally optimized constraint on the source. The proposed structure is evaluated in a real car environment, yielding results which compare well to the optimal Wiener solution where full knowledge of the source is known.

dc.publisherConference Management Services Pty Ltd
dc.titleA Subband Space Constrained Beamformer Incorporating Voice Activity Detection
dc.typeConference Paper
dcterms.source.titleICASSP 2005 Philadelphia DVD-ROM
dcterms.source.seriesICASSP 2005 Philadelphia DVD-ROM
dcterms.source.conference2005 IEEE International Conference on Acoustic, Speech, and Signal Processing
dcterms.source.conference-start-dateMar 18 2005
dcterms.source.conferencelocationPhiladelphia, Pennsylvania, USA
curtin.departmentWestern Australian Telecommunications Research Institute (Research Institute)
curtin.accessStatusFulltext not available

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