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The two-path algorithm for line echo cancellation
Responsible organisation
2004 (English)Conference paper, (Refereed) Published
Abstract [en]

The two-path algorithm is an algorithm for line echo cancellation based on two parallel filters. This paper proposes a modification of the two-path algorithm that improves its performance. In the two-path algorithm a background filter is used for continuously adaptive estimation of the line echo, while a foreground filter is used for the actual cancellation. The coefficients of the background filter are copied into the foreground filter when the background filter is proven to perform better. A robust algorithm for line echo cancellation is thereby achieved. In this paper, the benefits and the drawbacks of the two-path algorithm are evaluated and demonstrated through simulations. A modification is proposed that reduces the negative effects of the two-path algorithm. This modification is compared to the original two-path algorithm. Simulations using real speech signals indicate that the proposed modification can improve the performance of the two-path algorithm. © 2004IEEE.

Place, publisher, year, edition, pages
Chiang Mai, Thailand: IEEE , 2004.
Keyword [en]
Algorithms, Signal processing, Computer simulation
National Category
Signal Processing
Identifiers
URN: urn:nbn:se:bth-9772Local ID: oai:bth.se:forskinfo93C3A511D33E55D6C1256F04004E73F4OAI: oai:DiVA.org:bth-9772DiVA: diva2:837709
Conference
IEEE TENCON
Available from: 2012-09-18 Created: 2004-09-03 Last updated: 2015-06-30Bibliographically approved

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Dahl, MattiasClaesson, Ingvar
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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
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Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
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Output format
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