---
title: "init(audioComponentDescription:)"
framework: avfaudio
role: symbol
role_heading: Initializer
path: "avfaudio/avaudiouniteffect/init(audiocomponentdescription:)"
---

# init(audioComponentDescription:)

Creates an audio unit effect object with the specified description.

## Declaration

```swift
init(audioComponentDescription: AudioComponentDescription)
```

## Parameters

- `audioComponentDescription`: The description of the audio unit to create. The audioComponentDescription must be one of these types kAudioUnitType_Effect, kAudioUnitType_MusicEffect, kAudioUnitType_Panner, kAudioUnitType_RemoteEffect, or kAudioUnitType_RemoteMusicEffect.

## Return Value

Return Value A new AVAudioUnitEffect instance.