An integrated approach to acoustic noise and echo cancellation

Authors:
Geert Rombouts;Marc Moonen
Affiliations:
KULeuven/ESAT-SISTA, Kasteelpark Arenberg 10, 3001 Heverlee, Belgium;KULeuven/ESAT-SISTA, Kasteelpark Arenberg 10, 3001 Heverlee, Belgium
Venue:
Signal Processing
Year:
2005

Citing 4
Cited 1

Algorithms for Statistical Signal Processing

Algorithms for Statistical Signal Processing
Fast projection algorithms with application to voice echo cancellation

Fast projection algorithms with application to voice echo cancellation
QRD-based unconstrained optimal filtering for acoustic noise reduction

Signal Processing
Synthesized stereo combined with acoustic echo cancellation for desktop conferencing

ICASSP '99 Proceedings of the Acoustics, Speech, and Signal Processing, 1999. on 1999 IEEE International Conference - Volume 02

Joint noise reduction and acoustic echo cancellation using the transfer-function generalized sidelobe canceller

Speech Communication

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Abstract

We describe an approach to speech signal enhancement where acoustic echo cancellation and noise reduction, which are traditionally handled separately, are combined in one integrated scheme. The optimization problem defined by this scheme is solved adaptively using a QRD-based least squares lattice (QRD-LSL) algorithm. We show that the performance of the integrated scheme is superior to the performance of traditional (cascading) schemes, while complexity is kept at an affordable level.