---
title: audio
framework: usd
role: article
role_heading: Article
path: usd/audio
---

# audio

The location of an audio file.

## Overview

Overview The default value is blank. Each instance of AudioAction must supply its own value for this property and an accompanying music file by the same name within the asset. Declaration uniform asset audio Define an Audio File The following line shows how to define a path to an audio file named backgroundMusic.m4a: uniform asset audio = @backgroundMusic.m4a@

## See Also

### Properties

- [info:id](usd/info-id.md)
- [affectedObjects](usd/affectedobjects.md)
- [type](usd/type.md)
- [gain](usd/gain.md)
- [auralMode](usd/auralmode.md)