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In this paper, a new method for synchronous coding of digital audio and video signals is proposed. The audio signal is embedded within video signal to produce synchronous hybrid signal that is further encoded. The receiver is able to extract the audio signal from the hybrid signal, and thus, is able to reconstruct two separate signals, the audio and the video. The proposed method enables synchronous coding, transmission, storage, and playback of a video signal and the associated audio signal. The scheme can be used with the current and the developing coding standards to enable the accurate synchronization for the audio and the video data.