Abstract
A comparative study of the multichannel Affine Projection (AP), the Fast Transversal Filter (FTF), the filtered-X LMS (FXLMS) and the Recursive Least Squares (RLS) algorithms is presented for active noise control (ANC) systems. This study is based on simulations using real data and laboratory experiments, and is focused on: their computational cost, their convergence properties, their stability and their ability to create quiet zones around listener ears. The performance of the AP algorithm in the real system suggests its use in ANC systems as an alternative to the classical multichannel FXLMS since it provides meaningful attenuation levels, lower convergence time and similar computational cost.
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