Sound Key Terms

Foley - A Foley Artist is someone concerned with or related to the creation of sound effects for film, TV and even music. Foley is the reproduction of every day sounds by unnatural means, this is carried out by a Foley artist.
Diegetic Sound - Sounds such as music, animal noises and gunshots that are within the scene and can be heard by the characters as well as the audience.
Non-Diegetic Sound - Is a sound overlay on the scene, this tends to be music  but can also be sound effects used to create tension, and emphasise the importance of events, characters and certain objects. All of this can only be heard by the audience and not by the characters, as it is not within the scene.
Pitch - The quality of sound governed by the rate of vibrations producing it; the degree of highness or lowness of a tone.
Rhythm - A strong, regular repeated pattern  of movement or sound.
Sound bridge - When the scene begins with the carry-over sound from the previous scene before the new sound begins.

Sound motif -  A sound effect or combination of sound effects that are associated with a particular character, setting, situation or idea through the film.  Crescendo - A gradual increase in loudness in a piece of music.
Ambient sound - The background sounds which are present in a scene or location.
Asynchronous sound - Asynchronous sound effects are not matched with a  visible source  on screen.
Dialogue - A conversation between two or more people as a feature of a book, play, or film.
Timbre - The character or quality of a musical sound or voice as distinct from its pitch and intensity.
Hyperbolic sound - If a sound is hyperbolic it is exaggerated, it is louder than it would be normally.