Psychoacoustic active noise control based on delayless subband adaptive filtering

Abstract

In this paper we present a new psychoacoustic active noise control system based on delayless subband adaptive filtering structure. Human hearing has selective sensitivity for different frequency bands. Motivated by this psychoacoustic fact, noise weighting is incorporated into active noise control system. In this new system, the noise weighting is decomposed into subband forms for computation efficiency and performance improvement. Loudness, one psychoacoustic measure, is used to evaluate the system performance. Simulation on multi-tone signal shows improvement in noise cancellation and reduction in computation complexity.