Method and apparatus for replaying a video signal and one or more audio signals related to audio/video data that are based on a 24Hz frame frequency video signal

摘要

Movies are produced in 24Hz frame frequency and progressive scanning format (denoted 24p) for projection in film theatres, adhering to a worldwide standard for 35mm film. However, the major TV systems in the world use interlaced scanning and either 50Hz field frequency (denoted 50i) or 60Hz field frequency (denoted 60i). Content providers would prefer providing single-picture-frequency single-audio-speed AV discs that can be replayed in most parts of the world. According to the invention, for a 50Hz output mode, in the media player either audio signal frames are dropped adaptively or video fields or frames are repeated adaptively, depending on the current video and audio content. Thereby the less perceptible stream controls the synchronisation.