Title :
Sub-band adaptive filtering for acoustic echo cancellation
Author :
Dornean, Irina ; Topa, Marina ; Kirei, Botond Sandor ; Neag, Marius
Author_Institution :
Basis of Electron. Dept., Tech. Univ. from Cluj-Napoca, Cluj-Napoca, Romania
Abstract :
Sub-band filtering is employed in various system identification applications. It reduces the computational complexity and adaptation time. The paper focuses on sub-band filtering for acoustic echo cancellation. A Simulink model for 2, 4, 8 sub-bands was created and simulated. The echo is created by applying a vocal test to a first Schroeder reverberator. The performance of the full- and sub-band echo canceller is measured in terms of error signal and echo-return loss enhancement.
Keywords :
acoustic signal processing; adaptive filters; echo suppression; reverberation; Schroeder reverberator; Simulink model; acoustic echo cancellation; computational complexity; echo-return loss enhancement; error signal; sub-band adaptive filtering; vocal test; Acoustic measurements; Acoustic testing; Adaptive filters; Computational complexity; Computational modeling; Echo cancellers; Filtering; Loss measurement; Performance loss; System identification; acoustic echo cancellation; adaptive algorithms; echo-return loss enhancement; sub-band filtering;
Conference_Titel :
Circuit Theory and Design, 2009. ECCTD 2009. European Conference on
Conference_Location :
Antalya
Print_ISBN :
978-1-4244-3896-9
Electronic_ISBN :
978-1-4244-3896-9
DOI :
10.1109/ECCTD.2009.5275107
