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A Delay-Based Double-Talk Detector
Blekinge Institute of Technology, School of Engineering, Department of Electrical Engineering.
Blekinge Institute of Technology, School of Engineering, Department of Electrical Engineering.
Responsible organisation
2012 (English)In: IEEE Transactions on Audio, Speech, and Language Processing, ISSN 1558-7916, E-ISSN 1558-7924, Vol. 20, no 6, 1725-1733 p.Article in journal (Refereed) Published
Abstract [en]

When an adaptive filter is used for echo cancellation, it is essential to prevent the filter from diverging in situations when the echo signal is contaminated with near-end disturbance, i.e. during double-talk. This paper presents an extension of a previously proposed double-talk detector for improved performance. It is shown that the computational complexity of the proposed detector is lower than that of the well-used normalized cross correlation (NCC) double-talk detector, at the cost of performance. Further, it is shown that there can be a significant performance difference, in terms of detecting double-talk, between having a fixed echo cancellation filter, which is a common strategy in objective evaluation techniques, and an adaptive filter, which is more close to realistic conditions.

Place, publisher, year, edition, pages
2012. Vol. 20, no 6, 1725-1733 p.
Keyword [en]
Echo cancellation, adaptive filters, double-talk, double-talk detection
National Category
Signal Processing
Identifiers
URN: urn:nbn:se:bth-7170DOI: 10.1109/TASL.2012.2188512ISI: 000302532000005Local ID: oai:bth.se:forskinfoC8E2C4C849EAE429C12579F700565253OAI: oai:DiVA.org:bth-7170DiVA: diva2:834752
Note

http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6155602

Available from: 2012-11-27 Created: 2012-05-07 Last updated: 2017-12-04Bibliographically approved

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Schüldt, ChristianClaesson, Ingvar
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