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REAL TIME IMPLEMENTATION OF A BLIND BEAMFORMER FOR SUBBAND SPEECH ENHANCEMENT USING KURTOSIS MAXIMIZATION
Responsible organisation
2006 (English)Conference paper, Published paper (Refereed) Published
Abstract [en]

This paper presents a real time implementation of a blind beamformer for subband speech enhancement. The beamformer adaptively maximizes the statistical kurtosis measure of the beamformer’s output signal. Speech carries high kurtosis and noise often exhibit lower kurtosis. Hence, maximization of the output signal’s kurtosis enhances speech, in general. The implementation is carried out on a novel framework for real time audio processing in MATLAB and uses low latency ASIO sound cards. The implementation is evaluated using recorded signals and the speech is enhanced approximately 10 dB by the proposed approach with perceptually low speech distortion.

Place, publisher, year, edition, pages
Paris, 2006.
National Category
Signal Processing
Identifiers
URN: urn:nbn:se:bth-10122Local ID: oai:bth.se:forskinfo3C8FA5BD2FBA266DC12571DC0068D8DAOAI: oai:DiVA.org:bth-10122DiVA: diva2:838162
Conference
International Workshop on Acoustic Echo and Noise Control
Available from: 2012-09-18 Created: 2006-09-01 Last updated: 2015-06-30Bibliographically approved

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fulltext(99 kB)108 downloads
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Swartling, MikaelClaesson, Ingvar
Signal Processing

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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