---
title: speed
framework: realitykit
role: symbol
role_heading: Instance Property
path: realitykit/audioplaybackgroupcontroller/speed
---

# speed

The rate of playback for all audio resources in the group, with a range of [.25, 4]

## Declaration

```swift
@MainActor @preconcurrency var speed: Double { get set }
```

## Discussion

Discussion Set the speed to 1 for a normal playback rate. All audio sources in the group will play at the same speed to maintain synchronization.