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# kAudioQueueParam_Volume

The playback volume for the audio queue, ranging from `0.0` through `1.0` on a linear scale. A value of `0.0` indicates silence; a value of `1.0` (the default) indicates full volume for the audio queue instance.

```
var kAudioQueueParam_Volume: AudioQueueParameterID { get }
```

## Discussion

Use this property to control an audio queue’s volume relative to other audio output.

To provide UI in iOS for adjusting system audio playback volume, use the <doc://com.apple.documentation/documentation/MediaPlayer/MPVolumeView> class, which provides media playback controls that iOS users expect and whose appearance you can customize.

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