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An Improvement of the Two-Path Algorithm Transfer Logic for Acoustic Echo Cancellation
Responsible organisation
2007 (English)In: IEEE Transactions on Audio, Speech, and Language Processing, ISSN 1558-7916, E-ISSN 1558-7924, Vol. 15, no 4, 1320-1326 p.Article in journal (Refereed) Published
Abstract [en]

Adaptive filters for echo cancellation generally need update control schemes to avoid divergence in case of significant disturbances. The two-path algorithm avoids the problem of unnecessary halting of the adaptive filter when the control scheme gives an erroneous output. Versions of this algorithm have previously been presented for echo cancellation. This paper presents a transfer logic which improves the convergence speed of the two-path algorithm for acoustic echo cancellation, while retaining the robustness. Results from simulations show an improved performance, and a fixed-point DSP implementation verifies the performance in real-time

Place, publisher, year, edition, pages
IEEE , 2007. Vol. 15, no 4, 1320-1326 p.
Keyword [en]
acoustic echo cancellation, adaptive filtering, two-path, parallell filters, shadow filter, transfer logic
National Category
Signal Processing
Identifiers
URN: urn:nbn:se:bth-8458DOI: 10.1109/TASL.2007.894519ISI: 000245909800018Local ID: oai:bth.se:forskinfoB54FC6F0676A28DFC12574A600528B2FOAI: oai:DiVA.org:bth-8458DiVA: diva2:836182
Available from: 2012-09-18 Created: 2008-08-15 Last updated: 2017-12-04Bibliographically approved

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Claesson, Ingvar
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CiteExportLink to record
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Citation style
  • apa
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  • Other style
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  • de-DE
  • en-GB
  • en-US
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  • nn-NO
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