Abstract
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.
Similar content being viewed by others
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Herbordt, W., Buchner, H. & Kellermann, W. An Acoustic Human-Machine Front-End for Multimedia Applications. EURASIP J. Adv. Signal Process. 2003, 714768 (2003). https://doi.org/10.1155/S1110865703211094
Received:
Revised:
Published:
DOI: https://doi.org/10.1155/S1110865703211094