Title :
A multichannel affine projection algorithm with applications to multichannel acoustic echo cancellation
Author :
Benesty, Jacob ; Duhamel, Pierre ; Grenier, Yves
Author_Institution :
ENST, Paris, France
Abstract :
A straightforward generalization of the so-called affine projection algorithm (APA) to the multichannel (MC) case is easily obtained. However, due to the strong correlation between the input signals of the various channels, the resulting algorithm converges very slowly. The article describes the way to overcome this problem and derives an efficient algorithm that makes use of additional orthogonal projections.
Keywords :
acoustic signal processing; correlation methods; echo suppression; telecommunication channels; correlation; input signals; multichannel acoustic echo cancellation; multichannel affine projection algorithm; orthogonal projections; Acoustic applications; Degradation; Echo cancellers; Jacobian matrices; Least squares approximation; MPEG 4 Standard; Microphones; Projection algorithms; Stochastic processes; Teleconferencing;
Journal_Title :
Signal Processing Letters, IEEE
