Sound

Sound that the actor and the audience can hear:

• voices of characters

• sounds made by objects in the story

• music represented as coming from instruments in the story space ( = source music)

Diegetic sound is any sound from something or someone in the video

Digetic sound can be on screen (someone eating potato chips) or off screen (a police siren off in the distance).

Another term for diegetic sound is actual sound

Non-diegetic sound

Sound that is just for the audience and not actually created in the video

• narrator's commentary

• sound effects which are added for the dramatic effect

• mood music

Non-diegetic sound comes from outside the world of teh video and actors.

The distinction between diegetic or non-diegetic sound depends on our understanding. Playing with diegetic and non-diegetic conventions can be used to create ambiguity (horror), or to surprise the audience (comedy).

Another term for non-diegetic sound is commentary sound.

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