Joint optimization of LCMV beamforming and acoustic echo cancellation

Conference contribution
(Conference Contribution)


Publication Details

Author(s): Herbordt W, Kellermann W, Nakamura S
Editor(s): EURASIP
Publisher: European Signal Processing Conference, EUSIPCO
Publication year: 2004
Pages range: 2003-2006
ISBN: 9783200001657


Abstract


Full-duplex hands-free acoustic human/machine interfaces often require the combination of acoustic echo cancellation and speech enhancement in order to suppress acoustic echoes, local interference, and noise. In order to optimally exploit positive synergies between acoustic echo cancellation and speech enhancement, we present in this contribution a combined least-squares (LS) optimization criterion for the integration of acoustic echo cancellation and adaptive linearly-constrained minimum variance (LCMV) beamforming. Based on this optimization criterion, we derive a computationally efficient system based on the generalized sidelobe canceller (GSC), which effectively deals with scenarioes with time-varying acoustic echo paths and simultaneous presence of double-talk of acoustic echoes, local interference, and desired speakers.



FAU Authors / FAU Editors

Kellermann, Walter Prof. Dr.-Ing.
Professur für Nachrichtentechnik


External institutions
Advanced Telecommunications Research Institute International (ATR)


How to cite

APA:
Herbordt, W., Kellermann, W., & Nakamura, S. (2004). Joint optimization of LCMV beamforming and acoustic echo cancellation. In EURASIP (Eds.), Proceedings of the 12th European Signal Processing Conference, EUSIPCO 2004 (pp. 2003-2006). Vienna, AT: European Signal Processing Conference, EUSIPCO.

MLA:
Herbordt, Wolfgang, Walter Kellermann, and S. Nakamura. "Joint optimization of LCMV beamforming and acoustic echo cancellation." Proceedings of the 12th European Signal Processing Conference, EUSIPCO 2004, Vienna Ed. EURASIP, European Signal Processing Conference, EUSIPCO, 2004. 2003-2006.

BibTeX: 

Last updated on 2019-03-06 at 07:10