NDLI: Speech dereverberation and noise reduction with a combined microphone array approach

Content Provider	IEEE Xplore Digital Library
Author	Gonzalez-Rodriguez, J. Sanchez-Bote, J.L. Ortega-Garcia, J.
Copyright Year	2000
Description	Author affiliation: Speech & Signal Process. Group, Univ. Politecnica de Madrid, Spain (Gonzalez-Rodriguez, J.)
Abstract	In this contribution we have addressed the problem of speech enhancement in noisy and reverberant rooms through the use of a new approach that combines the dereverberation abilities of a structure based in the separate processing of the minimum-phase and all-pass components of the input speech signals, and the noise rejection performance of a speech-activity-based Wiener filter able to cope both with coherent and diffuse noise. Experiments have been performed with the CMU real multichannel database, which includes a clean speech reference through a head-mounted microphone. This reference signal have been also used to perform simulation experiments in controlled conditions. Extensive results have been obtained, both with log area ratio and cepstral distances of input and processed signals to the reference, and with segSNR improvements, assessing the abilities of the new system to cope both with reverberation and coherent and diffuse noise in different acoustic environments.
File Size	424083
File Format	PDF
ISBN	0780362934
ISSN	15206149
DOI	10.1109/ICASSP.2000.859140
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-06-05
Publisher Place	Turkey
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Speech enhancement Noise reduction Signal processing Speech processing Wiener filter Databases Microphones Cepstral analysis Reverberation Acoustic noise
Content Type	Text
Resource Type	Article

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