# Audio

> Support for Audio is currently a work in progress on signageOS SMIL Player.

```xml
<audio src="music.mp3" />
```

### Sound Volume Control

For video and audio objects, you can specify the "sound level" attribute to control their audio volume.

> This feature is in development.

```xml
<video src="ad1.mp4" soundLevel="20%" />
```

Valid values for soundLevel is from 0% (mute) to 100% (max).