Spatial & AtmosPost-Production
Ambience
Definition
The natural background sound of an environment — room tone, air conditioning hum, distant traffic. In mixing, ambience creates a sense of space and continuity between scenes or elements.
In Simple Terms
The background sound of a place — the hum of a room, distant traffic, the air itself. In a mix, it's what makes a scene feel real instead of artificially silent.
In Practice
In post-production, ambience recorded on location is looped beneath dialogue to prevent the mix from feeling acoustically dead between lines.
Dolby Atmos Context
In Dolby Atmos, ambience is typically placed in the bed layer to surround the listener consistently throughout a scene.
Sources & Verification
- Holman, T. — Sound for Film and Television (3rd ed., ambience chapter)Focal Press, 2010
- Yewdall, D. L. — Practical Art of Motion Picture Sound (4th ed.)Focal Press, 2012
Last verified: 2026-05-05