---
title: "Ambience"
url: https://postproduction.studio/en/glossary/ambience
language: en
description: "Ambience (or atmosphere, 'atmos') is the background sound layer that establishes the acoustic environment of a scene — the room tone of an interior, the..."
updated: 2026-10-25
---

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# Ambience

Ambience (or atmosphere, 'atmos') is the background sound layer that establishes the acoustic environment of a scene — the room tone of an interior, the wind and distant traffic of an exterior, the crowd murmur of a restaurant, the air handling of an office. Ambience is recorded as wild track sound (audio captured separately from picture, without dialogue, usually 30 seconds to several minutes per location) by the production sound mixer at every location. It serves multiple functions in post: it fills the gaps between dialogue lines (a cut from one shot to another would feel jarring if it transitioned from ambient sound to silence), it creates continuity (the same ambience layered under different shots in the same location ties them together), and it carries narrative tone (an isolated, sparse ambience reads as tension, a busy layered ambience reads as energy). Sound designers typically build ambience as multi-layered beds: a base layer (room tone or distant traffic), a midground layer (closer specifics like AC units or birds), and a foreground layer (distinct identifiable sounds that establish location specifically). Stock libraries (Sound Ideas, Pro Sound Effects, BBC Sound Effects Library) provide ambience options, but original recordings from the actual location are preferred when available. Ambience is mixed at lower levels than dialogue (typically -30 to -40 dBFS in a feature film mix) but is crucial to spatial believability. Reference: Sonnenschein, 'Sound Design.'

SoundSound Editor, Sound Designer, MixerSound Editing, Mixing

## Related terms

[Sound Design](https://postproduction.studio/en/glossary/sound-design)[Sound Effects (SFX)](https://postproduction.studio/en/glossary/sound-effects-sfx)[Dialogue Editing](https://postproduction.studio/en/glossary/dialogue-editing)

Two specialized rooms in sound post-production: ADR captures dialogue re-recording, foley creates synchronous physical sound effects.

## Articles covering this term

* [Sound ambiences: building acoustic space

  Sound ambiences structure the acoustic space of a production. Recording techniques, layered construction, and integration into mixing workflows.](https://postproduction.studio/en/sound/ambiances)
* [Audio post-production workflow: an overview

  A comprehensive guide through the audio post-production workflow, covering spotting, dialogue editing, foley, sound design, mixing, and final deliverables.](https://postproduction.studio/en/workflows/audio-post-workflow)
* [Sound editing: organizing the audio material

  Sound editing organizes and prepares audio material for mixing. Track naming, synchronization, collaboration and best practices.](https://postproduction.studio/en/sound/sound-editing)