---
title: rateCurveType
framework: phase
role: symbol
role_heading: Instance Property
path: phase/phasegrouppresetsetting/ratecurvetype
---

# rateCurveType

A rate of change for the setting’s playback speed.

## Declaration

```swift
var rateCurveType: PHASECurveType { get }
```

## Discussion

Discussion The framework sets the value to the init(gain:rate:gainCurveType:rateCurveType:) parameter.

## See Also

### Setting Playback Speed

- [rate](phase/phasegrouppresetsetting/rate.md)