An Acoustic Human-Machine Front-End for Multimedia Applications

<p/> <p>A concept of robust adaptive beamforming integrating stereophonic acoustic echo cancellation is presented which reconciles the need for low-computational complexity and efficient adaptive filtering with versatility and robustness in real-world scenarios. The synergetic combinatio...

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Main Authors: Herbordt Wolfgang, Buchner Herbert, Kellermann Walter
Format: Article
Language:English
Published: SpringerOpen 2003-01-01
Series:EURASIP Journal on Advances in Signal Processing
Subjects:
Online Access:http://dx.doi.org/10.1155/S1110865703211094
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author Herbordt Wolfgang
Buchner Herbert
Kellermann Walter
author_facet Herbordt Wolfgang
Buchner Herbert
Kellermann Walter
author_sort Herbordt Wolfgang
collection DOAJ
description <p/> <p>A concept of robust adaptive beamforming integrating stereophonic acoustic echo cancellation is presented which reconciles the need for low-computational complexity and efficient adaptive filtering with versatility and robustness in real-world scenarios. The synergetic combination of a robust generalized sidelobe canceller and a stereo acoustic echo canceller is designed in the frequency domain based on a general framework for multichannel adaptive filtering in the frequency domain. Theoretical analysis and real-time experiments show the superiority of this concept over comparable time-domain approaches in terms of computational complexity and adaptation behaviour. The real-time implementation confirms that the concept is robust and meets well the practical requirements of real-world scenarios, which makes it a promising candidate for commercial products.</p>
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spelling doaj.art-543f45f544de4d1fa3ea5d1679c2eef52022-12-21T22:22:23ZengSpringerOpenEURASIP Journal on Advances in Signal Processing1687-61721687-61802003-01-0120031714768An Acoustic Human-Machine Front-End for Multimedia ApplicationsHerbordt WolfgangBuchner HerbertKellermann Walter<p/> <p>A concept of robust adaptive beamforming integrating stereophonic acoustic echo cancellation is presented which reconciles the need for low-computational complexity and efficient adaptive filtering with versatility and robustness in real-world scenarios. The synergetic combination of a robust generalized sidelobe canceller and a stereo acoustic echo canceller is designed in the frequency domain based on a general framework for multichannel adaptive filtering in the frequency domain. Theoretical analysis and real-time experiments show the superiority of this concept over comparable time-domain approaches in terms of computational complexity and adaptation behaviour. The real-time implementation confirms that the concept is robust and meets well the practical requirements of real-world scenarios, which makes it a promising candidate for commercial products.</p>http://dx.doi.org/10.1155/S1110865703211094hands-free acoustic human-machine front-endmicrophone arraysrobust adaptive beamformingstereophonic acoustic echo cancellationgeneralized sidelobe cancellerfrequency-domain adaptive filters
spellingShingle Herbordt Wolfgang
Buchner Herbert
Kellermann Walter
An Acoustic Human-Machine Front-End for Multimedia Applications
EURASIP Journal on Advances in Signal Processing
hands-free acoustic human-machine front-end
microphone arrays
robust adaptive beamforming
stereophonic acoustic echo cancellation
generalized sidelobe canceller
frequency-domain adaptive filters
title An Acoustic Human-Machine Front-End for Multimedia Applications
title_full An Acoustic Human-Machine Front-End for Multimedia Applications
title_fullStr An Acoustic Human-Machine Front-End for Multimedia Applications
title_full_unstemmed An Acoustic Human-Machine Front-End for Multimedia Applications
title_short An Acoustic Human-Machine Front-End for Multimedia Applications
title_sort acoustic human machine front end for multimedia applications
topic hands-free acoustic human-machine front-end
microphone arrays
robust adaptive beamforming
stereophonic acoustic echo cancellation
generalized sidelobe canceller
frequency-domain adaptive filters
url http://dx.doi.org/10.1155/S1110865703211094
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