Identifying Traits Thriller Sound

Sound: 

Non diegetic sounds - Non-diegetic sounds are sounds that have been added in, this can include things like music, a narration and sound effects. Non-diegetic sounds are often used to add drama within the scene. Ex. dark and eerie music that builds tension and suspense. 

Diegetic sounds - Sound which is visible on the screen or is implied to be present by the action of the film: voices of characters,Heavy breathing, Doors creaking. 

Synthesized sounds - Helps creates the mood in the scene. This use of sounds is typically created through the use of technology.

Slow pace sounds - It helps create tension and suspense within the scene. It is commonly used when something bad is going to happen.