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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,...
In this paper we investigate several methods to estimate the signal in the lost packet of MP3 audio using side information. Our methods are based on a packet loss concealment method using sign correction proposed by Suzuki et al. Suzuki's method uses sign of lower MDCT coefficients as redundant information, and the sign information is used when estimating the MDCT coefficients of the lost packet....
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