Different sounds that movies or films use to emphasise or create an emotion as well as just ambient, natural or artificial sound.

1. Sound

2. Diegetic sound
Sound that dissipates (comes from) the scene
like ambient radios, conversations and general
noise in the background.

3. Non-diegetic sound
Sound that is artificial, put in post production.
An example is the music soundtrack or the
narrator.

4. Crescendo, Diminuendo and Sforzando
Crescendo – A build up of music usually to
emphasise a threat nearby or if something is
about to happen.
Diminuendo – The ‘dying’ point of the music
mainly when the threat has ended.
Sforzando – A short, sharp and loud noise used
to imply and reveal a fear.