Original music written specifically to accompany a film. Film scores encompass an enormous variety of styles of music, depending on the nature of the films they accompany.
Design sound effects are sounds that do not normally occur in nature, or are impossible to record in nature. These sounds are used to suggest futuristic technology in a science fiction film.
Sounds that appear on screen, such as door alarms, weapons firing, and cars driving by
Foley sound effects are sounds that synchronize on screen, and require the expertise of a foley artist to record properly. Footsteps, the movement of hand props (e.g., a tea cup and saucer), and the rustling of cloth are common foley units.
The voice-over is read from a script and may be spoken by someone who appears elsewhere in the production or by a specialist voice talent.
Dubbing - commonly refers to the replacement of the actor's voices with those of different performers speaking another language, which is called "revoicing" in the film industry.
ADR - automated dialogue replacement - the original actors re-record and synchronize audio segments.
Song Remix, Arranging,
A remix is a piece of media which has been altered from its original state by adding, removing, and/or changing pieces of the item.
DJ mixset is a sequence of musical tracks typically mixed together to appear as one continuous track.
the process of removing imperfections such as hiss, impulse noise, crackle, wow and flutter, background noise, and mains hum from sound recordings.