Title :
QRD-based optimal filtering for acoustic noise reduction
Author :
Rombouts, Geert ; Moonen, Marc
Author_Institution :
KU Leuven/ES AT-SISTA, Heverlee, Belgium
Abstract :
We present a new QRD-based technique for optimal multichannel filtering and its application to multichannel acoustic noise reduction. A recursively calculated adaptive filter optimally estimates the speech component in a noisy signal. The complexity of this algorithm is an order of magnitude than that of existing optimal filtering based algorithms which are mainly based upon SVD-decompositions, while performance is kept at the same level.
Keywords :
adaptive filters; filtering theory; noise abatement; signal denoising; singular value decomposition; speech processing; QRD-based optimal filtering; SVD-decompositions; multichannel acoustic noise reduction; noisy signal; optimal multichannel filtering; recursive calculated adaptive filter; speech component; Abstracts; Complexity theory; Filtering; Manganese; Noise; Speech; Vectors;
Conference_Titel :
Signal Processing Conference, 2002 11th European
Conference_Location :
Toulouse
