Method and apparatus for synchronously reproducing audio data and video data

Abstract

An apparatus for synchronously reproducing a video data and audio data includes a separating section, an audio data processing section, a video data processing section, and a synchronization processing section. The separating section separates a multiplexed compressed audio and video data into a compressed video data and a compressed audio data. The audio data processing section expands the compressed audio data to reproduce an audio data from the expanded audio data, and outputs the audio data to the synchronization processing section. The video data processing section expands the compressed video data in response to a control signal to reproduce a video data from the expanded video data, and outputs a signal indicative of each of frames, and a signal indicative of each of time stamps to the synchronization processing section. The synchronization processing section calculates a frame rate based on the audio data supplied from the audio data processing section, and the frame signal and the time stamp signal supplied from the video data processing section, and outputs the control signal to the video data processing section based on the calculated frame rate without using a frame rate written in the video data.

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