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Subband generalized sidelobe canceller - a constrained region approach

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Author

  • Siow-Yong Low
  • Sven Nordholm
  • Nedelko Grbic

Summary, in English

The paper proposes an efficient microphone array processing technique for speech enhancement. The scheme incorporates the source and interference predefined regions into a subband generalized sidelobe canceller (GSC). The lower path consists of two space constrained beamformers to extract the interference information outside the source region. This information then serves as a reference for an improved adaptive noise canceller to enhance the target signal. The key feature of this approach is that it is voice activity detector free. Evaluations made in a hands-free situation show very good interference suppression with negligible expense on the source distortion.

Publishing year

2003-10

Language

English

Pages

41-44

Publication/Series

Applications of Signal Processing to Audio and Acoustics, 2003 IEEE Workshop on.

Document type

Conference paper

Publisher

IEEE - Institute of Electrical and Electronics Engineers Inc.

Topic

  • Signal Processing

Conference name

IEEE Applications of Signal Processing to Audio and Acoustics, 2003

Conference date

2003-10-19 - 2003-10-22

Conference place

New Paltz, United States

Status

Published

ISBN/ISSN/Other

  • ISBN: 0-7803-7850-4