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Psychoacoustic Models and Non-Linear Human Hearing

Overview Non-linearity in the human ear can cause audible distortion not present in the original signal. Such distortion is generated within the ear by inter-modulation 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 suggested for predicting the in-ear distortion arising from an audio signal. The potential performance gains due to incorporating this knowledge into an audio codec are assessed.

Further White Paper Details
Publisher	MP3-Tech	File Format	PDF, requires Acrobat Rdr 5
Date Published	November 2000	Downloads	21
Format	White Papers
Topics	Biology, Transmission Interference

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