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Acoustic echo canceller for teleconferencing systems using Levinson algorithm
Ansvarig organisation
2010 (Engelska)Konferensbidrag, Publicerat paper (Refereegranskat) Published
Abstract [en]

In teleconferencing systems, there are disturbing effects of acoustic echo which hinder the quality of the sound from the loudspeakers. This paper presents an optimization technique to attenuate the acoustic echoes generated due to coupling between the microphone and the loudspeaker. An optimal filter is designed based on a least squares technique. It uses Levinson algorithm to equalize the acoustic channel in an iterative manner by calculating the correlation coefficients needed for updating the iterations, in order to minimize the echo effect. The method calculates the optimal solution directly with less data recorded. The performance was validated and compared with adaptive filtering technique using a real time signal from a conference room

Ort, förlag, år, upplaga, sidor
Chennai: IEEE , 2010.
Nyckelord [en]
Acoustic echo cancellation(AEC), Loudspeaker, Teleconferencing
Nationell ämneskategori
Signalbehandling
Identifikatorer
URN: urn:nbn:se:bth-7510DOI: 10.1109/INTERACT.2010.5706207Lokalt ID: oai:bth.se:forskinfo9134147CC68F9105C12578BE00261C38ISBN: 978-142449006-6 (tryckt)OAI: oai:DiVA.org:bth-7510DiVA, id: diva2:835134
Konferens
International Conference on "Emerging Trends in Robotics and Communication Technologies
Tillgänglig från: 2012-09-18 Skapad: 2011-06-29 Senast uppdaterad: 2015-06-30Bibliografiskt granskad

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Totalt: 21 träffar
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  • apa
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Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
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Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf