# Enable an audio spatializer in your XR project

> Learn about audio spatializer solutions for XR projects.

Audio spatializers use physical characteristics of a scene, such as the distance and angle between an [AudioListener](/engine/6000.6/manual/audio/reference/class-audio-listener.md) and an [AudioSource](/engine/6000.6/manual/audio/reference/class-audio-source.md), to modify the properties of sound transmitted to the user. Spatialization can improve the perception that a sound originates from a specific location in a scene.

The Unity audio system supports spatialization through plug-ins built with the Unity [Audio Spatializer SDK](/engine/6000.6/manual/audio/mixer-native-audio-plugin/spatializer-sdk.md).

Unity doesn't provide any built-in spatializer plug-ins itself, but several plug-in implementations are available in third-party 3D audio SDKs. These audio SDKs typically provide additional Unity components and tools for 3D audio. To learn about common audio spatializers for XR projects, refer to [Audio spatializer reference](/engine/6000.6/manual/xr/audio/spatializer-reference.md).

## Enable an audio spatializer plug-in

After you have added the package containing an audio spatializer plug-in to your project, you can enable the plug-in in the project audio settings.

To enable a plug-in:

1. Open the Project Settings window (menu: **Edit > Project Settings**).
2. Select the **Audio** category.
3. Choose the plug-in from the **Spatializer Plugin** dropdown menu.

## Additional resources

* [Audio overview](https://docs.unity3d.com/Manual/AudioOverview.html)