NDLI: Speech dereverberation based on Linear Prediction: An Acoustic Vector Sensor approach

Content Provider	IEEE Xplore Digital Library
Author	Shujau, M. Ritz, C.H. Burnett, I.S.
Copyright Year	2013
Description	Author affiliation: Sch. of Electr. & Comput. Eng., RMIT Univ., Melbourne, VIC, Australia (Burnett, I.S.) \|\| Sch. of Electr., Comput., & Telecommun. Eng., Univ. of Wollongong, Wollongong, NSW, Australia (Shujau, M.; Ritz, C.H.)
Abstract	This paper introduces a dereverberation algorithm based on Linear Prediction (LP) applied to the outputs of an Acoustic Vector Sensor (AVS). The approach applies adaptive beamforming to take advantage of the directional outputs of the AVS array to obtain a more accurate LP spectrum than can be obtained with a single channel or Uniform Linear Array (ULA) with a comparable number of channels. This is then used within a modified version of the Spatiotemporal Averaging Method for Enhancement of Reverberant Speech (SMERSH) algorithm derived for the AVS to enhance the LP residual signal. In a highly reverberant environment, the approach demonstrates a significant improvement compared to a ULA as measured by both the Signal to Reverberant Ratio (SRR) and Speech to Reverberation Modulation Energy Ratio (SRMR) for sources ranging from at 1m to 5m from the array.
Starting Page	639
Ending Page	643
File Size	481990
Page Count	5
File Format	PDF
ISBN	9781479903566
ISSN	15206149
DOI	10.1109/ICASSP.2013.6637726
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-05-26
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Speech Arrays Reverberation Microphones Speech enhancement Speech Enhancement Acoustic Vector Sensors Dereverberation
Content Type	Text
Resource Type	Article

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