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A study of doubletalk detection performance in the presence of acoustic echo path changes
Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology.
Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology.
2006 (English)In: IEEE transactions on consumer electronics, ISSN 0098-3063, E-ISSN 1558-4127, Vol. 52, no 2, 515-522 p.Article in journal (Refereed) Published
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Abstract [en]

An efficient and well-performing double-talk detection (DTD) algorithm is a vital part of a practically working acoustic echo canceller. However, recent algorithms are typically evaluated using a static time-invariant room acoustic impulse response, omitting a proper treatment of the case when the acoustic path is changing. In this work, we introduce a common framework to objectively evaluate how path changes affect the DTD performance. Via extensive numerical simulations, we conclude that the main factor in acoustic path changes affecting the DTD performance for some of the more common DTD algorithms is variations in the damping of the acoustic path.

Place, publisher, year, edition, pages
Uppsala Univ, Dept Syst & Control, Informat Control, SE-75105 Uppsala, Sweden. Karlstad Univ, Dept Elect Engn, SE-65188 Karlstad, Sweden., 2006. Vol. 52, no 2, 515-522 p.
Keyword [en]
doubletalk detection, acoustic echo cancellation, adaptive filtering
National Category
Communication Systems
Identifiers
URN: urn:nbn:se:uu:diva-301678DOI: 10.1109/TCE.2006.1649673ISI: 000238870000033OAI: oai:DiVA.org:uu-301678DiVA: diva2:955045
Available from: 2016-08-24 Created: 2016-08-24 Last updated: 2016-08-24Bibliographically approved

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