A Nonlinear Psychoacoustic Model Applied to ISO/MPEG Layer 3 Coder

A psychoacoustic model which approximates the masked threshold evoked by complex sounds is presented. It features nonlinear superposition of masking com ponents in order to generate masked thresholds which closely match known psy choacoustic data. First results obtained with the psychoacoustic model for con trolling the quantizers of the ISO MPEG Layer 3 coder are discussed.

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