Name
Abstract | ||
|---|---|---|
This paper presents an approach to non-linear acoustic echo cancellation (AEC).We first present the model of a loudspeaker enclosure microphone system which is divided into two blocks: a non-linear, power filter model for the down-link path (loudspeaker and amplifiers) and a linear model for the acoustic channel and up-link path. Using this model we propose an approach that uses loudspeaker linearization and linear AEC to improve performance of an otherwise classical approach to linear AEC. The novel contribution in this paper relates to a new on-line linearization pre-processing algorithm that adapts to long-term variations in the loudspeaker characteristics. This feature contrasts with fixed pre-processor aglorithms which have been reported previously. |
Year | DOI | Venue |
|---|---|---|
2011 | 10.1109/ASPAA.2011.6082311 | WASPAA |
Keywords | Field | DocType |
nonlinear model,pre-processor aglorithms,linearisation techniques,linear model,volterra,microphones,power filter,aec,echo suppression,acoustic channel,power filters,nonlinear acoustics,non-linearity,power filter model,acoustic signal processing,adaptive filtering,loudspeakers,loudspeaker linearization,online loudspeaker linearization,acoustic echo cancellation,loudspeaker enclosure microphone system,noise measurement,non linearity,signal to noise ratio,least squares approximation | Loudspeaker enclosure,Computer science,Linear model,Signal-to-noise ratio,Electronic engineering,Adaptive filter,Acoustics,Loudspeaker,Linearization,Microphone,Amplifier | Conference |
ISSN | ISBN | Citations |
1931-1168 E-ISBN : 978-1-4577-0691-2 | 978-1-4577-0691-2 | 2 |
PageRank | References | Authors |
0.39 | 5 | 4 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Moctar Mossi Idrissa | 1 | 16 | 3.29 |
| Christelle Yemdji | 2 | 14 | 2.57 |
| nicholas evans | 3 | 594 | 54.41 |
| Christophe Beaugeant | 4 | 148 | 20.60 |