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This paper describes packet loss concealment methods for MP3 audio. The proposed methods are based on estimation of modified discrete cosine transform (MDCT) coefficients of the lost packets. The estimation of MDCT coefficients of lower dimensions is performed by switching two concealment methods: the sign correction method and the correlation-based method. The concealment methods are switched based...
In audio communications over a lossy packet network, packet loss concealment techniques are needed to mitigate a user's frustration when perceiving the deterioration of the quality of the decoded signal. Multiple description coding (MDC) is a useful solution to this problem. In this paper, we describe an MDC method to conceal packet losses for wideband audio streaming based on the sample splitting...
In this paper, we propose a method to embed side in- formation into MP3 bitstream using a data hiding technique. Usually, side information is transmitted in ancillary data field of an MP3 packet, which is independent of audio bitstream. When a certain amount of side information is packed into an ancillary data field, bitrate for the audio stream become smaller if we keep the total bitrate constant,...
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