Research into sound

In a film there are two types of sound which may be used. These are Diegetic and Non-Diegetic sound.

Diegetic Sound
Diegetic sound is sound which is visible or implied to be part of the world of the film. Diegetic sounds include

• Actors speaking
• Sounds origination for any object on screen, for example footsteps.
• Music which comes from a speaker or band.

Diegetic sound may also be referred to as actual or literal sound. This sound can also be categorised as either source-connected or source-disconnected, which depends on whether the sound is visible o screen or implied. Source-connected means the source is shown on the screen, while source-disconnected describes the sound which is not shown on the screen however it is still apart of the film world.



Non-Diegetic Sound
Non-Diegetic sound is sound that is not visable on screen or is not implied to be part of the film world.  This includes:

• Narrators commentary 
• Sound effects which have been added for dramatic effect
• Mood Music