Title: A multi-channel subband generalized singular value decomposition approach to speech enhancement
Authors: Spriet, Ann ×
Moonen, Marc
Wouters, Jan #
Issue Date: Mar-2002
Publisher: Assoc elettrotecnica ed elettronica italiana
Series Title: European Transactions on Telecommunications vol:13 issue:2 pages:149-158
Abstract: In speech communication applications, the presence of noise (and reverberation) in the environment may render the captured speech unintelligible. Noise reduction algorithms are thus needed to improve the intelligibility. Recently, a multi-channel noise reduction technique, based on a Generalized Singular Value Decomposition (GSVD) has been proposed. The GSVD based filter minimizes the Mean Square Error (MSE) between the desired signal portion in the received signals and the sum of the filtered received microphone signals. In this paper, we propose a subband implementation of the GSVD based filter. It is shown that - in the case of coloured signals - the subband implementation improves intelligibility more than the fullband approach, In addition, a significant complexity reduction is achieved, allowing for low cost, real-time applications.
ISSN: 1120-3862
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Faculty of Engineering Science - miscellaneous
Research Group Experimental Oto-rhino-laryngology
Department of Rehabilitation Sciences - miscellaneous
ESAT - STADIUS, Stadius Centre for Dynamical Systems, Signal Processing and Data Analytics
× corresponding author
# (joint) last author

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