An Acoustic Human-Machine Front-End for Multimedia Applications
EURASIP Journal on Advances in Signal Processing volume 2003, Article number: 714768 (2003)
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.
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