---
title: unitName
framework: audiotoolbox
role: symbol
role_heading: Instance Property
path: audiotoolbox/audiounitparameterinfo/unitname
---

# unitName

If kAudioUnitParameterUnit_CustomUnit is set, this field must contain a valid CFString object. Only valid if kAudioUnitParameterUnit_CustomUnit is set.

## Declaration

```swift
var unitName: Unmanaged<CFString>?
```