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Restoration of Nonlinearly Distorted Audio by Histogram Equalization

A histogram-equalization method has been developed which can restore amplitude-distorted speech. A histogram of the input signal is modeled. The distribution function of the modeled input signal is compared to a reference distribution function. The mismatch can be used to describe the distorting nonlinearity and its inverse as an amplitude map which corrects the distorted signal.

Author: White, Stanley A.
Affiliation: Rockwell International Corporation, Target Acquisition and Guidance Engineering Department, Autonetics Strategic Systems Division, Defense Electronics Operations, Anaheim, CA
JAES Volume 30 Issue 11 pp. 828-832; November 1982 Import into BibTeX

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