---
title: AVAudioUnitDistortion
framework: avfaudio
role: symbol
role_heading: Class
path: avfaudio/avaudiounitdistortion
---

# AVAudioUnitDistortion

An object that implements a multistage distortion effect.

## Declaration

```swift
class AVAudioUnitDistortion
```

## Topics

### Configuring the distortion

- [loadFactoryPreset(_:)](avfaudio/avaudiounitdistortion/loadfactorypreset(_:).md)
- [AVAudioUnitDistortionPreset](avfaudio/avaudiounitdistortionpreset.md)

### Getting and setting the distortion values

- [preGain](avfaudio/avaudiounitdistortion/pregain.md)
- [wetDryMix](avfaudio/avaudiounitdistortion/wetdrymix.md)

## Relationships

### Inherits From

- [AVAudioUnitEffect](avfaudio/avaudiouniteffect.md)

### Conforms To

- [CVarArg](swift/cvararg.md)
- [CustomDebugStringConvertible](swift/customdebugstringconvertible.md)
- [CustomStringConvertible](swift/customstringconvertible.md)
- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [NSObjectProtocol](objectivec/nsobjectprotocol.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)

## See Also

### Audio effects

- [AVAudioUnitEffect](avfaudio/avaudiouniteffect.md)
- [AVAudioUnitEQ](avfaudio/avaudiouniteq.md)
- [AVAudioUnitDelay](avfaudio/avaudiounitdelay.md)
- [AVAudioUnitReverb](avfaudio/avaudiounitreverb.md)