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A Spatially Constrained Subband Beamforming Algorithm for speech enhancement
Ansvarlig organisasjon
2004 (engelsk)Konferansepaper, Publicerat paper (Fagfellevurdert) 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.

sted, utgiver, år, opplag, sider
Sitges, SPAIN: IEEE , 2004.
Emneord [en]
Beamforming, Speech enhancement
HSV kategori
Identifikatorer
URN: urn:nbn:se:bth-9424ISI: 000230899800014Lokal ID: oai:bth.se:forskinfoE73C7774682F1F60C1256F00004373D8ISBN: 0-7803-8545-4 (tryckt)OAI: oai:DiVA.org:bth-9424DiVA, id: diva2:837266
Konferanse
3rd IEEE Sensor Array and Multichannel Signal Processing Workshop
Tilgjengelig fra: 2012-09-18 Laget: 2004-08-30 Sist oppdatert: 2015-06-30bibliografisk kontrollert

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Claesson, Ingvar

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