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# AudioUnitEventType

```
enum AudioUnitEventType
```

## Topics

### Constants

[`kAudioUnitEvent_BeginParameterChangeGesture`](/documentation/AudioToolbox/AudioUnitEventType/beginParameterChangeGesture)

[`kAudioUnitEvent_EndParameterChangeGesture`](/documentation/AudioToolbox/AudioUnitEventType/endParameterChangeGesture)

[`kAudioUnitEvent_ParameterValueChange`](/documentation/AudioToolbox/AudioUnitEventType/parameterValueChange)

[`kAudioUnitEvent_PropertyChange`](/documentation/AudioToolbox/AudioUnitEventType/propertyChange)

## Relationships

### Conforms To

[`BitwiseCopyable`](/documentation/Swift/BitwiseCopyable)

[`RawRepresentable`](/documentation/Swift/RawRepresentable)

[`Sendable`](/documentation/Swift/Sendable)

[`SendableMetatype`](/documentation/Swift/SendableMetatype)

[`Equatable`](/documentation/Swift/Equatable)

[`Hashable`](/documentation/Swift/Hashable)

---

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