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A Distortion Reducing Subband Limiter Implementation for Conference Phones
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2008 (English)Conference paper (Refereed) Published
Abstract [en]

Distortion, most often caused by the loudspeaker, is a practical problem in acoustic echo cancellation-based conference phones. Typically, this distortion varies significantly with the frequency. This paper presents an implementation of a distortion reducing subband limiter to be used in conjunction with an acoustic echo canceller in a commercial conference phone, yielding improved cancellation performance. Verification of the performance was performed through evaluation of a fix-point real-time implementation.

Place, publisher, year, edition, pages
Las Vegas: IEEE , 2008.
Keyword [en]
acoustic echo cancellation, distortion, non-linear, loudspeaker
National Category
Signal Processing
URN: urn:nbn:se:bth-8459ISI: 000258983200007Local ID: diva2:836183
IEEE International Conference on Consumer Electronics
Available from: 2012-09-18 Created: 2008-08-15 Last updated: 2015-06-30Bibliographically approved

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Claesson, Ingvar
Signal Processing

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ReferencesLink to record
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