Source related error concealment techniques for Digital Audio Broadcasting (DAB) considering the listeners perception

Abstract

In spite of applied high sophisticated channel coding techniques [3] non correctable errors wiU occur during several conditions of reception. Conventional FM-receivers are well known for audible distortions during mobile reception in urban or montaineous regions or at the fringe of the coverage area. DAB could provide intelligent concealment techniques in the case of non correctable errors. Different methods are known to conceal burst-errors of durations up to some 20ms or even more than l a m s [4].