1. 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.
2. 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.
3. Synchronous/Asynchronous
Sound
• Sound that fits in/does not fit in with the pace or
the beat of the action taking place on the screen
eg:
• Music that corresponds with the clashing of
swords or
• Speech that is in time with lip movement or
dubbed
4. Parallel/Contrapuntal Sound
• Sound that fits the mood of a scene/is in contrast to the
scene eg:
• Fast paced music during a police chase
• Sadistic music during a murder
• Some inspective music during a crime scene
• The who playing when Heratio from CSI tells a pun
5. Ambient sound
• In filmmaking, ambience consists of the sounds of a given
location or space. It is the opposite of "silence." This term is
often confused with presence.
• Every location had distinct and subtle sounds created by its
environment. These sound sources can include wildlife, wind,
music, rain, running water, thunder, rustling leaves, distant
traffic, aircraft and machinery noise, the sound of distant
human movement and speech, creaks from thermal
contraction, air conditioning and plumbing noises, fan and
motor noises, and harmonics of mains power.
6. Sound Bridge
• The bridge is built for continuity -- the sound from one scene
is carried into the adjoining scene, or example:
• A boy sits in a park, watching his dog play in the autumn
leaves, and the sound heard is that of a doorbell ringing. The
front door is visible in the next scene.