Audio post production .The post-production of audio that is synchronized with video. This applies to TV, cinema, and commercials. One major aspect of audio post production is the use of ADR, or automatic dialogue replacement. Sometimes the original, or production audio, lacks in performance or quality, and the actor or actors are brought into a sound studio to record some or all of their dialogue from the project. Other elements such as foley, music, and voiceover, are also added during post production