lesson
Updated 6 days ago
Imagine a horror movie where a wooden floorboard creaks, followed immediately by a screeching violin chord. Why does the character in the house only react to the creak while you jump at both?
The answer comes down to who can hear the sound: the characters living inside the film's world, or just us sitting in the audience.
What makes a sound belong to the film's story world?
The Story World: Diegesis
In film theory, the diegesis is the entire fictional story world, including all of its characters, objects, spaces, and events. In 1950, French philosopher Étienne Souriau introduced this term to clearly separate what happens inside the fictional narrative reality from the filmmaking tools outside it.
Any sound that originates from a source within this narrative world is called diegetic sound. Because these sounds exist inside the fictional environment, the characters within the scene can hear them.
📊Interactive diagram
Common diegetic sounds include spoken dialogue between characters, tires screeching on asphalt, wind blowing through trees, or music playing from a visible car stereo.
If diegetic sounds belong to the world on screen, where do film scores and voiceovers live?
External Sound: The Non-Diegetic Domain
Non-diegetic sound comes from a source outside the story world, added during post-production to guide emotion, create rhythm, or provide commentary.
Because non-diegetic sounds do not exist in the physical reality of the characters, they cannot hear them. The most common examples are the background orchestral score, dramatic sound stingers, and an omniscient voiceover narrator explaining the plot.
How do you test and categorize every audio track in a scene during an exam analysis?