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A Subband Space Constrained Beamformer incorporating Voice Activity Detection

Davis, Alan; Low, Siow-Yong; Nordholm, Sven and Grbic, Nedelko LU (2005) 2005 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) In Proceedings. (ICASSP '05). IEEE International Conference on Acoustics, Speech, and Signal Processing, 2005. (Volume:3 ) 3. p.65-68
Abstract
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.
Please use this url to cite or link to this publication:
author
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
Proceedings. (ICASSP '05). IEEE International Conference on Acoustics, Speech, and Signal Processing, 2005. (Volume:3 )
volume
3
pages
4 pages
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
conference name
2005 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP)
external identifiers
  • Scopus:33646699825
ISBN
0-7803-8874-7
DOI
10.1109/ICASSP.2005.1415647
language
English
LU publication?
no
id
e49576bf-f9a8-4c9c-83cf-08c8b29cfef9
date added to LUP
2016-06-23 16:07:36
date last changed
2017-01-01 08:29:02
@inproceedings{e49576bf-f9a8-4c9c-83cf-08c8b29cfef9,
  abstract     = {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.},
  author       = {Davis, Alan and Low, Siow-Yong and Nordholm, Sven and Grbic, Nedelko},
  booktitle    = {Proceedings. (ICASSP '05). IEEE International Conference on Acoustics, Speech, and Signal Processing, 2005.  (Volume:3 )},
  isbn         = {0-7803-8874-7},
  language     = {eng},
  pages        = {65--68},
  publisher    = {IEEE--Institute of Electrical and Electronics Engineers Inc.},
  title        = {A Subband Space Constrained Beamformer incorporating Voice Activity Detection},
  url          = {http://dx.doi.org/10.1109/ICASSP.2005.1415647 },
  volume       = {3},
  year         = {2005},
}