---
title: AudioUnitEventType.propertyChange
framework: audiotoolbox
role: symbol
role_heading: Case
path: audiotoolbox/audiouniteventtype/propertychange
---

# AudioUnitEventType.propertyChange

## Declaration

```swift
case propertyChange
```

## See Also

### Constants

- [AudioUnitEventType.beginParameterChangeGesture](audiotoolbox/audiouniteventtype/beginparameterchangegesture.md)
- [AudioUnitEventType.endParameterChangeGesture](audiotoolbox/audiouniteventtype/endparameterchangegesture.md)
- [AudioUnitEventType.parameterValueChange](audiotoolbox/audiouniteventtype/parametervaluechange.md)