A Spatially Constrained Subband Beamforming Algorithm for Speech Enhancement
(2004) 2004 IEEE Sensor Array and Multichannel Signal Processing Workshop 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.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/b06b8eb3-9ab0-4102-b274-77c59c6fd188
- author
- Cornelius, Per ; Yermeche, Zohra ; Grbic, Nedelko LU and Claesson, Ingvar LU
- publishing date
- 2004-07
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- host publication
- 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
- conference location
- Barcelona, Spain
- conference dates
- 2004-07-18 - 2004-07-21
- 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
- 2024-01-04 08:56:04
@inproceedings{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}}, booktitle = {{Sensor Array and Multichannel Signal Processing Workshop Proceedings, 2004}}, isbn = {{0-7803-8545-4}}, language = {{eng}}, pages = {{89--93}}, publisher = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}}, title = {{A Spatially Constrained Subband Beamforming Algorithm for Speech Enhancement}}, url = {{http://dx.doi.org/10.1109/SAM.2004.1502914}}, doi = {{10.1109/SAM.2004.1502914}}, year = {{2004}}, }