García Morales, LinoBeracoechea-Álava, Jon A.Torres-Guijarro, SoledadCasajús Quirós, F. J.2016-08-082016-08-082006García, L., Beracoechea-Álava, J. A., Torres-Guijarro, S., & Casajús, F. J. (2006). The conjugate gradient partitioned block frequency-domain adaptive filter for multichannel acoustic echo cancellation. In 14th European Signal Processing Conference (EUSIPCO 2006) (pp. 1-5). IEEE. DOI: 10.1007/978-3-540-85640-5_1922195491http://hdl.handle.net/11268/5577Multichannel 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 behaviour is compared against previous PBFDAF schemes.engconference output10.1007/978-3-540-85640-5_19restricted accessAcústicaAcústica