ERROR CONCEALMENT UNIT, AUDIO DECODER, AND RELATED METHOD AND COMPUTER PROGRAM FADING OUT A CONCEALED AUDIO FRAME OUT ACCORDING TO DIFFERENT DAMPING FACTORS FOR DIFFERENT FREQUENCY BANDS

摘要

There is provided an error concealment unit, method, and computer program for providing an error concealment audio information for concealing a loss of an audio frame in an encoded audio information. In one embodiment, the error concealment unit is configured to provide an error concealment audio information using a frequency domain concealment based on a properly decoded audio frame preceding a lost audio frame. The error concealment unit is configured to fade out a concealed audio frame out according to different damping factors for different frequency bands.