Last Updated 1 day ago
Definition
Asynchronous sound refers to audio that is not synchronized with the image on screen. This can happen unintentionally due to technical issues—such as sound falling out of sync with picture—or be used deliberately by filmmakers as a stylistic or narrative device.
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Types of Asynchronous Sound
- Unintentional Asynchrony:
- Caused by recording or playback errors.
- Examples include lip movements not matching dialogue or footsteps sounding out of time.
- Usually corrected in post-production with ADR or sync adjustments.
- Deliberate Asynchrony:
- Used as a creative tool to create tension, disorientation, or symbolic meaning.
- Example: A gunshot heard before the weapon is shown firing.
- Can emphasize emotional or psychological states by separating sound from image.
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Why It Matters
Asynchronous sound is a reminder that film is not only about images—it’s about the relationship between sound and picture. Whether accidental or intentional, it affects how audiences process meaning, tone, and emotion.
Related Terms
- [Synchronous Sound] Audio that is matched precisely with its on-screen source.
- [ADR (Automated Dialogue Replacement)] Studio re-recording of dialogue to fix sync or audio quality issues.
- [Diegetic Sound] Audio that originates within the film’s world, such as dialogue or ambient noise.