Conjugate Gradient Techniques for Multichannel Acoustic Echo Cancellation in Frequency Domain

Beracoechea JA, Casajús-Quirós FJ, García Morales L, Torres-Guijarro S. Conjugate Gradient Techniques for Multichannel Acoustic Echo Cancellation in Frequency Domain. In: AES Convention 120. Audio Engineering Society; 2006. Paper 6713. Available from: https://aes.org/publications/elibrary-page/?id=13517

@inproceedings{Beracoechea2006_13517,
  author = {Beracoechea, Jon Ander and Casajús-Quirós, Francisco Javier and García Morales, Lino and Torres-Guijarro, Soledad},
  title = {{Conjugate Gradient Techniques for Multichannel Acoustic Echo Cancellation in Frequency Domain}},
  booktitle = {AES Convention 120},
  note = {Paper 6713},
  year = {2006},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=13517}
}

TY  - CPAPER
TI  - Conjugate Gradient Techniques for Multichannel Acoustic Echo Cancellation in Frequency Domain
AU  - Beracoechea, Jon Ander
AU  - Casajús-Quirós, Francisco Javier
AU  - García Morales, Lino
AU  - Torres-Guijarro, Soledad
T2  - AES Convention 120
M1  - Paper 6713
PY  - 2006
DA  - 2006/05/06
UR  - https://aes.org/publications/elibrary-page/?id=13517
PB  - Audio Engineering Society
LA  - en
AB  - Multichannel acoustic cancellation problem requires working with extremely large impulse responses. Multirate adaptive schemes such as the partitioned block frequency-domain adaptive filter (PBFDAF) are good alternatives and are widely used in commercial echo cancellation systems nowadays. However, being a Least Mean Square (LMS) derived algorithm, the convergence speed may not be fast enough under some circumstances. In this paper we propose a new scheme which combines frequency-domain adaptive filtering with conjugate gradient techniques in order to speed up the convergence time. The new algorithm (PBFDAF-CG) is developed and its behavior is compared against previous PBFDAF schemes.
ER  -