> ## Documentation Index
> Fetch the complete documentation index at: https://docs.heybreez.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Background Noise

The **Background Noise** node controls ambient sound during the call, allowing you to add or remove noise profiles (e.g., office ambience) to shape the caller’s perception of the environment.

Use this node to **start**, **change**, or **stop** background noise at any point in the workflow.

***

## Main Settings

### State

Controls whether background noise should start or stop at this point in the path. Options:

* **On** — begin playing the selected background noise track.
* **Off** — immediately stop any previously started background noise. When Off is selected, all other fields are hidden.

Use a second Background Noise node later in the path (State = Off) to cleanly stop noise initiated earlier.

### Track

*Shown only when **State = On**.*\
Select the ambient noise profile to play in the background. Options:

* **Office**
* **Keyboard**

### Auto Turn Off

*Shown only when **State = On**.*\
Choose how and when background noise should automatically stop. Options:

* **Disabled** — noise continues until manually stopped by another Background Noise node.
* **Timer Based** — noise stops automatically after a configurable number of seconds.
* **When Agent Takes Control** — noise stops the moment the agent begins speaking or resumes control of the conversation.

***

### **Turn Off After (seconds)**

*Shown only when **Auto Turn Off = Timer Based**.*\
Define how many seconds the track should play before turning off automatically.