---
title: "init(groupID:controlID:value:)"
framework: audiotoolbox
role: symbol
role_heading: Initializer
path: "audiotoolbox/extendedcontrolevent/init(groupid:controlid:value:)"
---

# init(groupID:controlID:value:)

## Declaration

```swift
init(groupID: MusicDeviceGroupID, controlID: AudioUnitParameterID, value: AudioUnitParameterValue)
```