Sound design is used throughout film making to create atmosphere and a realistic environment.
Diegetic sound is sound that purports to come from the world of the film.
Non-Diegetic sound is sound added in post production to have an effect on the audience.
- Composed score (music composed for the film) and
- Compiled score (songs which already exists but, is then put into the film)
Sound bridges are used when a track plays over changing scenes