---
title: rate
framework: scenekit
role: symbol
role_heading: Instance Property
path: scenekit/scnaudiosource/rate
---

# rate

The default playback rate for the audio source.

## Declaration

```swift
var rate: Float { get set }
```

## Discussion

Discussion This property determines the default rate for when a source begins playing. To vary the rate during playback through an SCNAudioPlayer object, use the player’s audioNode property to access real-time audio controls.

## See Also

### Setting Default Playback Parameters

- [volume](scenekit/scnaudiosource/volume.md)
- [reverbBlend](scenekit/scnaudiosource/reverbblend.md)
- [loops](scenekit/scnaudiosource/loops.md)
- [shouldStream](scenekit/scnaudiosource/shouldstream.md)