Graduate School and Research Center in Digital Sciences

Dual amplifier and loudspeaker compensation using fast convergent and cascaded approaches to non-linear acoustic echo cancellation

Mossi, Moctar; Yemdji, Christelle; Evans, Nicholas; Beaugeant, Christophe; Plante, Fabrice M; Marfouq, Fatimazahra

ICASSP 2012, 37th International Conference on Acoustics, Speech and Signal Processing, March 25-30, 2012, Kyoto, Japan

This paper focuses on cascaded approaches to non-linear acoustic echo cancellation (AEC) for mobile communications. The contributions in this paper are two-fold. They relate (i) to computationally efficient pre-processing and clipping compensation which aims to improve non-linear modelling and (ii) decorrelation filtering which aims to improve the tracking performance of a conventional linear AEC algorithm. While well-established in the literature the two modules require significant development in order that they function coherently in a cascaded approach. This paper presents new, adaptive parameterisation procedures for both modules and demonstrates significant improvements in terms of echo return loss enhancement when the two modules are combined.

Document Doi Bibtex

Title:Dual amplifier and loudspeaker compensation using fast convergent and cascaded approaches to non-linear acoustic echo cancellation
Keywords:Echo cancellation, non-linear, Volterra, NLMS, decorrelation filtering, clipping compensation
Type:Conference
Language:English
City:Kyoto
Country:JAPAN
Date:
Department:Digital Security
Eurecom ref:3594
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Bibtex: @inproceedings{EURECOM+3594, doi = {http://dx.doi.org/10.1109/ICASSP.2012.6287812}, year = {2012}, title = {{D}ual amplifier and loudspeaker compensation using fast convergent and cascaded approaches to non-linear acoustic echo cancellation}, author = {{M}ossi, {M}octar and {Y}emdji, {C}hristelle and {E}vans, {N}icholas and {B}eaugeant, {C}hristophe and {P}lante, {F}abrice {M} and {M}arfouq, {F}atimazahra}, booktitle = {{ICASSP} 2012, 37th {I}nternational {C}onference on {A}coustics, {S}peech and {S}ignal {P}rocessing, {M}arch 25-30, 2012, {K}yoto, {J}apan}, address = {{K}yoto, {JAPAN}}, month = {03}, url = {http://www.eurecom.fr/publication/3594} }
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