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A Spatially Constrained Subband Beamforming Algorithm for Speech Enhancement

Cornelius, Per; Yermeche, Zohra; Grbic, Nedelko LU and Claesson, Ingvar LU (2004) 2004 IEEE Sensor Array and Multichannel Signal Processing Workshop In Sensor Array and Multichannel Signal Processing Workshop Proceedings, 2004 p.89-93
Abstract
This paper discusses speech enhancement in an enclosed environment such as communication in a motorcycle helmet. A new constrained subband adaptive beamformer is proposed, which uses the concept of an earlier proposed calibrated beamformer mainly developed for a hands-free in-car environment. The highly non-stationary nature of the disturbing sound field encountered in an motorcycle helmet and the fact that the source is situated in the extreme nearfield of the array, causes the beamformer to produce an unwanted fluctuation in the output level. The spatially constrained beamformer proposed in this paper makes sure that the output maintains a constant gain, as long as the corresponding source originates from the desired location.
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author
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
in
Sensor Array and Multichannel Signal Processing Workshop Proceedings, 2004
pages
4 pages
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
conference name
2004 IEEE Sensor Array and Multichannel Signal Processing Workshop
external identifiers
  • Scopus:28244440476
ISBN
0-7803-8545-4
DOI
10.1109/SAM.2004.1502914
language
English
LU publication?
no
id
b06b8eb3-9ab0-4102-b274-77c59c6fd188
date added to LUP
2016-06-23 15:47:20
date last changed
2016-10-13 05:10:48
@misc{b06b8eb3-9ab0-4102-b274-77c59c6fd188,
  abstract     = {This paper discusses speech enhancement in an enclosed environment such as communication in a motorcycle helmet. A new constrained subband adaptive beamformer is proposed, which uses the concept of an earlier proposed calibrated beamformer mainly developed for a hands-free in-car environment. The highly non-stationary nature of the disturbing sound field encountered in an motorcycle helmet and the fact that the source is situated in the extreme nearfield of the array, causes the beamformer to produce an unwanted fluctuation in the output level. The spatially constrained beamformer proposed in this paper makes sure that the output maintains a constant gain, as long as the corresponding source originates from the desired location.},
  author       = {Cornelius, Per and Yermeche, Zohra and Grbic, Nedelko and Claesson, Ingvar},
  isbn         = {0-7803-8545-4},
  language     = {eng},
  pages        = {89--93},
  publisher    = {ARRAY(0xc329198)},
  series       = {Sensor Array and Multichannel Signal Processing Workshop Proceedings, 2004},
  title        = {A Spatially Constrained Subband Beamforming Algorithm for Speech Enhancement},
  url          = {http://dx.doi.org/10.1109/SAM.2004.1502914 },
  year         = {2004},
}