Device for recording video data and audio data

An audio/video synchronization processing method for synchronizing video data and audio data having different predetermined frame lengths, comprising:

• a step of calculating an audio delay time constituted by a delay time of the frames of the audio data based on breaks of frames of the video data at the time of a pause request,
• a step of monitoring a frame offset time constituted by a difference of the frame start time of the audio data with respect to the video data at each start time of each frame of the video data after a pause request,
• a step of calculating an audio correction time based on the audio delay time and the frame offset time at the time of a pause release request for a pause request, and
• a step of determining which of the video data and the audio data to delay in frame units or not to delay either after a pause release request based on a cumulative audio correction time obtained by cumulatively adding the audio correction time calculated for each pause release request.

An audio/video recording apparatus for synchronizing video data and audio data having different predetermined frame lengths, comprising:

• a timer means;
• a storage means for storing a start time of each frame of the video data and audio data, a time of a pause request;
• and a time of a pause release request counted by the timer means;
• a synchronization controlling means for synchronizing the audio data after a pause release request in frame units based on the start time of each frame of the video data and audio data, the time of the pause request, and the time of the pause release request;
• and
• a multiplex data generating means for adding time information to the video data and the audio data synchronized by the synchronization controlling means and generating multiplex data.