---
title: "init(inParamID:inValue:outString:)"
framework: audiotoolbox
role: symbol
role_heading: Initializer
path: "audiotoolbox/audiounitparameterstringfromvalue/init(inparamid:invalue:outstring:)"
---

# init(inParamID:inValue:outString:)

## Declaration

```swift
init(inParamID: AudioUnitParameterID, inValue: UnsafePointer<AudioUnitParameterValue>, outString: Unmanaged<CFString>?)
```