Sounds

Diegetic -This is a natural sound within a scene, the source of the sound is visible on screen (a person talking) or implied to be present by the action of the film (sounds of bullets in a shooting)

Non diegetic -This is a sound added to a scene such as a soundtrack. The source of the sound is not visible nor is implied to be present in action. Examples include a narrators documentary or a piece of music playing over the acting of characters.There are potential problems such as the realism of it.However benefits include added a dramatic effect to the scene.

Sound bridge-This is a sound which carries on over two scenes, it literally creates a 'bridge' between events. They are the most commonaly used style of editing. It shows a connection between both scenes.

Incendental music-This is a short sequence of sound to create a certain emotion/feeling. It is usually background music and creates an atmosphere. For example a slow, low pitched noise may suggest an approaching threat to a character.

Asychronous sound-A 'natural' sound out of place and without a source, often adds a realism to the film.

Contropunctual -This is a sound which creates an opposite emotion to the one on screen