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Change prediction for low complexity combined beamforming and acoustic echo cancellation

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Abstract
Time-variant beamforming (BF) and acoustic echo cancellation (AEC) are two techniques that are frequently employed for improving the quality of hands-free speech communication. However, the combined application of both is quite challenging as it either introduces high computational complexity or insufficient tracking. We propose a new method to improve the performance of the low-complexity beamformer first (BF-first) structure, which we call change prediction(ChaP). ChaP gathers information on several BF changes to predict the effective impulse response seen by the AEC after the next BF change. To account for uncertain data and convergence states in the predictions, reliability measures are introduced to improve ChaP in realistic scenarios.

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Citation

Please use this url to cite or link to this publication:

MLA
Schrammen, M., et al. “Change Prediction for Low Complexity Combined Beamforming and Acoustic Echo Cancellation.” 2019 27th European Signal Processing Conference (EUSIPCO), IEEE, 2019, doi:10.23919/EUSIPCO.2019.8902726.
APA
Schrammen, M., Bohlender, A., Kühl, S., & Jax, P. (2019). Change prediction for low complexity combined beamforming and acoustic echo cancellation. In 2019 27th European Signal Processing Conference (EUSIPCO). A. Coruna, Spain: IEEE. https://doi.org/10.23919/EUSIPCO.2019.8902726
Chicago author-date
Schrammen, M., Alexander Bohlender, S. Kühl, and P. Jax. 2019. “Change Prediction for Low Complexity Combined Beamforming and Acoustic Echo Cancellation.” In 2019 27th European Signal Processing Conference (EUSIPCO). IEEE. https://doi.org/10.23919/EUSIPCO.2019.8902726.
Chicago author-date (all authors)
Schrammen, M., Alexander Bohlender, S. Kühl, and P. Jax. 2019. “Change Prediction for Low Complexity Combined Beamforming and Acoustic Echo Cancellation.” In 2019 27th European Signal Processing Conference (EUSIPCO). IEEE. doi:10.23919/EUSIPCO.2019.8902726.
Vancouver
1.
Schrammen M, Bohlender A, Kühl S, Jax P. Change prediction for low complexity combined beamforming and acoustic echo cancellation. In: 2019 27th European Signal Processing Conference (EUSIPCO). IEEE; 2019.
IEEE
[1]
M. Schrammen, A. Bohlender, S. Kühl, and P. Jax, “Change prediction for low complexity combined beamforming and acoustic echo cancellation,” in 2019 27th European Signal Processing Conference (EUSIPCO), A. Coruna, Spain, 2019.
@inproceedings{8637990,
  abstract     = {Time-variant beamforming (BF) and acoustic echo cancellation (AEC) are two techniques that are frequently employed for improving the quality of hands-free speech communication. However, the combined application of both is quite challenging as it either introduces high computational complexity or insufficient tracking. We propose a new method to improve the performance of the low-complexity beamformer first (BF-first) structure, which we call change prediction(ChaP). ChaP gathers information on several BF changes to predict the effective impulse response seen by the AEC after the next BF change. To account for uncertain data and convergence states in the predictions, reliability measures are introduced to improve ChaP in realistic scenarios.},
  articleno    = {8902726},
  author       = {Schrammen, M. and Bohlender, Alexander and Kühl, S. and Jax, P.},
  booktitle    = {2019 27th European Signal Processing Conference (EUSIPCO)},
  isbn         = {9789082797022},
  language     = {eng},
  location     = {A. Coruna, Spain},
  pages        = {5},
  publisher    = {IEEE},
  title        = {Change prediction for low complexity combined beamforming and acoustic echo cancellation},
  url          = {http://dx.doi.org/10.23919/EUSIPCO.2019.8902726},
  year         = {2019},
}

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