---
title: "init(argCount:mPitch:mVelocity:)"
framework: audiotoolbox
role: symbol
role_heading: Initializer
path: "audiotoolbox/musicdevicestdnoteparams/init(argcount:mpitch:mvelocity:)"
---

# init(argCount:mPitch:mVelocity:)

## Declaration

```swift
init(argCount: UInt32, mPitch: Float32, mVelocity: Float32)
```