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An Acoustic Echo Canceller Using Subband Adaptive Filters
Responsible organisation
1996 (English)Conference paper, Published paper (Refereed) Published
Abstract [en]

The use of hands-free communication in cars, computer applications and video-conferencing has created a demand for high-quality acoustic echo cancellation. In these applications have the acoustic channel typically a long impulse response in the order of 100ms. Typical lengths of adaptive FIR-filters can be 500-1500 taps. In order to reduce the complexity and also improve the convergence rate have subband processing schemes been suggested. This paper presents an implementation of a delayless subband adaptive filter. The study shows a possible suppression of about 30 dB and also a more rapid convergence than a fullband LMS-filter.

Place, publisher, year, edition, pages
Perth, 1996.
National Category
Signal Processing
Identifiers
URN: urn:nbn:se:bth-10098Local ID: oai:bth.se:forskinfo42607D8A274D1CCFC12568A3002CAA3BOAI: oai:DiVA.org:bth-10098DiVA: diva2:838131
Conference
4th UK/Australian Symposium on DSP for Communication Systems
Available from: 2012-09-18 Created: 2000-03-15 Last updated: 2015-06-30Bibliographically approved

Open Access in DiVA

fulltext(247 kB)27 downloads
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File name FULLTEXT01.pdfFile size 247 kBChecksum SHA-512
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Signal Processing

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
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  • Other locale
More languages
Output format
  • html
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