A Perceptually Motivated Active Noise Control Design and Its Psychoacoustic Analysis

ETRI Journal

关键词: psychoacoustics;    ITU-R 468 noise weighting;    A-weighting;    human hearing perception;    acoustic noise;    Active noise control;   

Others  :  1193707
DOI  :  10.4218/etrij.13.0112.0822

【 摘 要 】

The active noise control (ANC) technique attenuates acoustic noise in a flexible and effective way. Traditional ANC design aims to minimize the residual noise energy, which is indiscriminative in the frequency domain. However, human hearing perception exhibits selective sensitivity for different frequency ranges. In this paper, we aim to improve the noise attenuation performance in perceptual perspective by incorporating noise weighting into ANC design. We also introduce psychoacoustic analysis to evaluate the sound quality of the residual noise by using a predictive pleasantness model, which combines four psychoacoustic parameters: loudness, sharpness, roughness, and tonality. Simulations on synthetic random noise and realistic noise show that our method improves the sound quality and that ITU-R 468 noise weighting even performs better than A-weighting.

   

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