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Psychoacoustic Models and Non-Linear Human Hearing

Nonlinearity in the human ear can cause audible distortion not present in the original signal. Such distortion is generated within the ear by intermodulation of a spectral complex, itself containing possible masked components. When psychoacoustic codecs remove these supposedly masked components, the in-ear generated distortion is also removed, and so our listening experience is modified. In this paper the in-ear distortion is quantified and a method is suggested for predicting the in-ear distortion arising from an audio signal. The potential performance gains because of incorporating this knowledge into an audio codec are assessed.:

Authors: Robinson, David J. M.; Hawksfords, Malcolm J.
Affiliation: Centre for Audio Research and Engineering, University of Essex, Colchester, Essex, UK
AES Convention:109 (September 2000) Paper Number:5228 Import into BibTeX
Subject:Perception and Psychoacoustics

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E-Library Location: (CD aes15)   /pp9900/pp0009/109045.pdf

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