# Spatial Audio

3D positional sound with distance attenuation.

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**Tags:** `audio` `3d` `spatial`

## What it demonstrates
- `AudioPlayer3D` attached to a moving mesh so the mix pans and attenuates with distance.
- `AudioListener3D` parented under the `Camera3D`, so the camera pose is the ear.
- A procedurally generated looping tone via `AudioClip.tone()` (no external asset).
- Live spatial state: listener->source distance changes as the source orbits the listener.

## Source

```{literalinclude} ../../examples/features/audio/spatial.py
:language: python
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```