Video and audio reproduction system, distribution device, and synchronization adjustment method

A video and audio reproduction system comprising:

• a distribution device which comprises a video data distributing section and an audio data distributing section, the video data distributing section distributing video reproducing video data, the audio data distributing section distributing audio reproducing audio data;
• a video display device which processes the distributed video data and displays the video data as a video;
• and
• an audio output device which processes the distributed audio data and outputs the audio data as an audio,
• wherein
• the distribution device is configured to be able to distribute the audio data of a determination audio and the video data of a determination video,
• the determination video is a video with which a viewer can visually judge a timing the determination audio is to be output from the audio output device,
• the determination audio and the determination video are contained in synchronization adjustment test content, and
• at least either the distribution device or the audio output device is configured to delay the output of the audio from the audio output device so that the determination audio is output at the timing in the determination video.

A synchronization adjustment method using a video and audio reproduction system comprising:

• a distribution device which comprises a video data distributing section and an audio data distributing section, the video data distributing section distributing video reproducing video data, the audio data distributing section distributing audio reproducing audio data;
• a video display device which processes the distributed video data and displays the video data as a video;
• and an audio output device which processes the distributed audio data and outputs the audio data as an audio,
• the method comprising:
• distributing the audio data of a determination audio and the video data of a determination video by the distribution device, the determination video being a video with which a viewer can visually judge a timing the determination audio is to be output from the audio output device, the determination audio and the determination video being contained in synchronization adjustment test content;
• and
• delaying the output of the audio from the audio output device by an audio delay time by at least either the distribution device or the audio output device so that the determination audio is output at the timing in the determination video.