Method & system for synchronization of an auxiliary sound source which may contain multiple language channels to motion picture film, video tape, or other picture source containing a sound track

Abstract From the Canadian patent

Method, system and apparatus correlate an audio message of an auxiliary sound source with an audio message from a sound track of motion picture film, video tape or other picture source with accompanying audio message track. This auxiliary source contains multiple language channels (also called "translation tracks" or "translation sound channels") running synchronously with each other. One such channel is a "prime language channel" including an audio message carrying the same information (possibly higher quality) in the same language as the message in the track accompanying the motion picture. This prime channel is derived from the same "master recording" (or high quality duplicate thereof) …