Gated silence removal during video trick modes

摘要

The invention concerns a method and apparatus for playing an audio track during a faster than 1 speed video trick mode playback of a video presentation. The method begins with the step of retrieving from a storage medium information for producing at least a video portion and a corresponding audio portion of a presentation. The audio portion of the presentation, like most audio sound tracks, includes periods of relative silence. For example, these may occur between words or between dramatic pauses in the dialogue. Audio gating is used to selectively gate the audio portion of the presentation to remove at least a portion of the periods of relative silence. Finally, a remaining part of the audio portion of the presentation is concatenated for playback to remove any gaps after the portion of the periods of relative silence have been removed.