Diegetic sound refers to all sound in a film whose source is visible or implied to be present in the scene, such as voices, music from within the story, or sounds made by objects. Non-diegetic sound includes any sound that seems to come from outside the story world, like narration, sound effects added for drama, or mood music. The document also defines other sound-related film terms like synchronous sound, sound effects, sound motifs, sound bridges, dialogue, voiceovers, sound mixing, sound perspective, and soundtrack.

1. Sound in film industry-
Mr Daley G322

2. Diegetic and non diegetic sound –
Diegetic sound - Sound whose source is visible on the screen or whose source is implied to be present by the
action of the film:
•voices of characters
•sounds made by objects in the story
•music represented as coming from instruments in the story space
Diegetic sound is any sound presented as originated from source within the film's world Diegetic sound can be
either on screen or off screen depending on whatever its source is within the frame or outside the frame
(diegetic sound can also be known as actual sound).
Non diegetic sound - Sound whose source is neither visible on the screen nor has been implied to be present in
the action:
• narrator's commentary
• sound effects which is added for the dramatic effect
• mood music
Non-diegetic sound is represented as coming from the a source outside story space.
Synchronous sound –
Sound that appears to be matched to certain movements occurring in the scene, as when footsteps correspond
to feet walking.

3. Sound effects –
Any sound artificially produced, reproduced from a recording, etc, to create a theatrical effect, such as the bringing
together of two halves of a hollow coconut shell to simulate a horse's gallop; used in plays, films, etc
Sound motif –
A recurring subject, theme, idea, etc., especially in a literary, artistic, or musical work.
Sound bridge –
When the scene begins with the carry-over sound from the previous scene before the new sound begins.
Dialogue -
Conversation between two or more people
Voiceover –
the voice of an off-screen narrator, announcer, or the like.

4. Mode of address/direct address –
How media shouts out to their audience, for example how music magazines are presented to the audience
Sound mixing –
The process during the post-production stage of a film or a television program in which the collection of
recorded sounds are combined into one or more channels along with adjusting the many attributes of the
sounds such as the source signals’ level.
Sound perspective –
A sound’s position in space as perceived by the viewer given by volume, timbre, and pitch.
Soundtrack –
The narrow strip at one side of a movie film that carries the sound recording.
The music that accompanies a movie.
A commercial recording of such music