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A hybrid acoustic echo canceller and suppressor
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2007 (English)In: Signal Processing, ISSN 0165-1684 , Vol. 87, no 4, 739-749 p.Article in journal (Refereed) Published
Abstract [en]

Wideband communication is becoming a desired feature in telephone conferencing systems. This paper proposes a computationally efficient echo suppression control algorithm to be used when increasing the bandwidth of an audio conferencing system, e.g. a conference telephone. The method presented in this paper gives a quality improvement, in the form of increased bandwidth, at a negligible extra computational cost. The increase in bandwidth is obtained through combining a conventional acoustic echo cancellation unit and an acoustic echo suppression unit, i.e. a hybrid echo canceller and suppressor. The proposed solution was implemented in a real-time system. Frequency analysis combined with subjective tests showed that the proposed method extends the bandwidth, while maintaining high quality.

Place, publisher, year, edition, pages
Elsevier , 2007. Vol. 87, no 4, 739-749 p.
Keyword [en]
Acoustic echo cancellation, AEC, Acoustic echo suppression, AES, Wideband, Hybrid
National Category
Signal Processing
URN: urn:nbn:se:bth-9206ISI: 000242727800011Local ID: diva2:836984
doi:10.1016/j.sigpro.2006.07.006Available from: 2012-09-18 Created: 2007-07-05 Last updated: 2015-06-30Bibliographically approved

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Claesson, Ingvar
Signal Processing

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