Audio track — is a set of recorded sounds combined into one or more channels. This process occurs when the elements of image are edited in final version. Typically, this a mix of four basic elements: speech (dialogue, voice-overs), environment, sound effects, music. All this is audio track and added to the movie. This audio track can be added to the movie and cut from movie. As e result, in the same film may be imposed multiple tracks, for example, the original English, dubbed Russian and Ukrainian multi voices tracks. It allows you to view movies with different voice acting.