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A Spatially Constrained Subband Beamforming Algorithm for speech enhancement
Responsible organisation
2004 (English)Conference paper, Published paper (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
Sitges, SPAIN: IEEE , 2004.
Keyword [en]
Beamforming, Speech enhancement
National Category
Signal Processing
Identifiers
URN: urn:nbn:se:bth-9424ISI: 000230899800014Local ID: oai:bth.se:forskinfoE73C7774682F1F60C1256F00004373D8ISBN: 0-7803-8545-4 (print)OAI: oai:DiVA.org:bth-9424DiVA: diva2:837266
Conference
3rd IEEE Sensor Array and Multichannel Signal Processing Workshop
Available from: 2012-09-18 Created: 2004-08-30 Last updated: 2015-06-30Bibliographically approved

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fulltext(328 kB)128 downloads
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Claesson, Ingvar
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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf