L&S

LIGHTING AND SOUND.

Back Light
Back Light separates subject from background, the angle of this should be toward the lens from above and behind the subject, or above, behind, and slightly to the side of it, high enough to cut lens Flare. It is especially helpful for video images that may suffer loss- of-edge contrast. This would be effective to use within our production to show difference between two things.
Key lighting
This is the main lighting source in a scene. Used in conjunction with fill lighting and backlighting to create a three-point system.

Sound Bridges 
This is the sound from one scene will continue into or over the next scene – the images we see change but the sound is still from the previous scenes. More often, we hear the sound from the next sequence before we see the relevant images. This would be effective to use within our production, as it would be a sense of never ending sound and it would keep the audience engaged within our production work.
Parallel sound
This is the sound we hear which usually complements what we see – happy sounds for happy images and sad music at sad moments, this allows the audience to almost sense being there as such.This would be effective to use within our production work as it would suit the scene thus allowing the audience to believe it is almost real and meant to be within the scene.

Contrapuntal sound

This is the sound we hear which doesn't complements what we see – sad sounds for happy images, scary music for happy scenes, this allows the audience to have a change of emotion or feeling and it could also confuse them. This would be effective to use within our production work as it would engage the audience as it would be different to the images shown.

Diegetic sound 
This is literally sounds with the frame of the scene that you are watching e.g. dialogue, sound made by objects within the scene. Digetic sound can be either on screen or off screen depending on whatever its source is within the frame or outside the frame. 

Non-diegetic sound 
Sound that is usually added on after the scene is already done such as backing track, narrators commentary, mood music. This is usually done during editing after the scene has been completed. 

The distinction between diegetic or non-diegetic sound depends on how we get attach to the movie, the feelings we receive from it, and on our understanding of the conventions of film viewing and listening.  We know of that certain sounds are represented as coming from the story world, while others are  represented as coming from outside the space of the story events.