A Spatially Constrained Subband Beamforming Algorithm for Speech Enhancement

Per Cornelius; Zohra Yermeche; Nedelko Grbic; Ingvar Claesson

doi:10.1109/SAM.2004.1502914

A Spatially Constrained Subband Beamforming Algorithm for Speech Enhancement

Per Cornelius, Zohra Yermeche, Nedelko Grbic, Ingvar Claesson

Blekinge Institute of Technology

Research output: Chapter in Book/Report/Conference proceeding › Paper in conference proceeding › peer-review

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.

Original language	English
Title of host publication	Sensor Array and Multichannel Signal Processing Workshop Proceedings, 2004
Publisher	IEEE - Institute of Electrical and Electronics Engineers Inc.
Pages	89-93
Number of pages	4
ISBN (Print)	0-7803-8545-4
DOIs	https://doi.org/10.1109/SAM.2004.1502914
Publication status	Published - 2004 Jul
Externally published	Yes
Event	2004 IEEE Sensor Array and Multichannel Signal Processing Workshop - Barcelona, Spain Duration: 2004 Jul 18 → 2004 Jul 21

Workshop

Workshop	2004 IEEE Sensor Array and Multichannel Signal Processing Workshop
Country/Territory	Spain
City	Barcelona
Period	2004/07/18 → 2004/07/21

Access to Document

10.1109/SAM.2004.1502914

Cite this

@inproceedings{b06b8eb39ab04102b27477c59c6fd188,

title = "A Spatially Constrained Subband Beamforming Algorithm for Speech Enhancement",

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 = "Per Cornelius and Zohra Yermeche and Nedelko Grbic and Ingvar Claesson",

year = "2004",

month = jul,

doi = "10.1109/SAM.2004.1502914",

language = "English",

isbn = "0-7803-8545-4",

pages = "89--93",

booktitle = "Sensor Array and Multichannel Signal Processing Workshop Proceedings, 2004",

publisher = "IEEE - Institute of Electrical and Electronics Engineers Inc.",

address = "United States",

note = "2004 IEEE Sensor Array and Multichannel Signal Processing Workshop ; Conference date: 18-07-2004 Through 21-07-2004",

}

Cornelius, P, Yermeche, Z, Grbic, N & Claesson, I 2004, A Spatially Constrained Subband Beamforming Algorithm for Speech Enhancement. in Sensor Array and Multichannel Signal Processing Workshop Proceedings, 2004. IEEE - Institute of Electrical and Electronics Engineers Inc., pp. 89-93, 2004 IEEE Sensor Array and Multichannel Signal Processing Workshop, Barcelona, Spain, 2004/07/18. https://doi.org/10.1109/SAM.2004.1502914

A Spatially Constrained Subband Beamforming Algorithm for Speech Enhancement. / Cornelius, Per; Yermeche, Zohra; Grbic, Nedelko et al.
Sensor Array and Multichannel Signal Processing Workshop Proceedings, 2004. IEEE - Institute of Electrical and Electronics Engineers Inc., 2004. p. 89-93.

Research output: Chapter in Book/Report/Conference proceeding › Paper in conference proceeding › peer-review

TY - GEN

T1 - A Spatially Constrained Subband Beamforming Algorithm for Speech Enhancement

AU - Cornelius, Per

AU - Yermeche, Zohra

AU - Grbic, Nedelko

AU - Claesson, Ingvar

PY - 2004/7

Y1 - 2004/7

N2 - 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.

AB - 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.

U2 - 10.1109/SAM.2004.1502914

DO - 10.1109/SAM.2004.1502914

M3 - Paper in conference proceeding

SN - 0-7803-8545-4

SP - 89

EP - 93

BT - Sensor Array and Multichannel Signal Processing Workshop Proceedings, 2004

PB - IEEE - Institute of Electrical and Electronics Engineers Inc.

T2 - 2004 IEEE Sensor Array and Multichannel Signal Processing Workshop

Y2 - 18 July 2004 through 21 July 2004

ER -

A Spatially Constrained Subband Beamforming Algorithm for Speech Enhancement

Abstract

Workshop

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