Graduate School and Research Center in Digital Sciences

Robust and low-cost cascaded non-linear acoustic echo cancellation

Mossi, Moctar; Yemdji, Christelle; Evans, Nicholas; Beaugeant, Christophe; Degry, Philippe

ICASSP 2011, 36th International Conference on Acoustics, Speech and Signal Processing, May 22-27, 2011, Prague, Czech Republic

This paper addresses the problem of acoustic echo cancellation in   non-linear environments. The first contribution relates to the use   of a cascaded model which divides the loudspeaker enclosure microphone   system into two main blocks; the first models the downlink   transducers which are assumed to be the main source of nonlinearity.   The second block includes the acoustical channel and uplink   transducers which are assumed to be linear and have a comparatively   longer impulse response and higher time variability. The second   contribution is a new non-linear adaptive echo canceler which is   based on the cascaded model and has greater robustness to changes   in the acoustic channel than an existing power filter approach.

Document Doi Bibtex

Title:Robust and low-cost cascaded non-linear acoustic echo cancellation
Keywords:Acoustic echo cancellation, non-linear echo, Volterra series
Type:Conference
Language:English
City:Prague
Country:CZECH REPUBLIC
Date:
Department:Digital Security
Eurecom ref:3322
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Bibtex: @inproceedings{EURECOM+3322, doi = {http://dx.doi.org/10.1109/ICASSP.2011.5946335 }, year = {2011}, title = {{R}obust and low-cost cascaded 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 {D}egry, {P}hilippe}, booktitle = {{ICASSP} 2011, 36th {I}nternational {C}onference on {A}coustics, {S}peech and {S}ignal {P}rocessing, {M}ay 22-27, 2011, {P}rague, {C}zech {R}epublic }, address = {{P}rague, {CZECH} {REPUBLIC}}, month = {05}, url = {http://www.eurecom.fr/publication/3322} }
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