Robust and low-cost cascaded non-linear acoustic echo cancellation
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.
| Mots Clés: | Acoustic echo cancellation, non-linear echo, Volterra series |
| Type: | Conférence |
| Langue: | English |
| Ville: | Prague |
| Pays: | TCHÈQUE, RÉPUBLIQUE |
| Date: | Mai 2011 |
| Département: | Communications Multimédia |
| Eurecom ref: | 3322 |
| Copyright: | © 2011 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. |
| 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 {W} {D} 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, {TCH}{\`{E}}{QUE}, {R}{\'{E}}{PUBLIQUE}}, month = {05}, url = {http://www.eurecom.fr/publication/3322} } |
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