---
title: "init(mFrequency:mMagnitude:)"
framework: audiotoolbox
role: symbol
role_heading: Initializer
path: "audiotoolbox/audiounitfrequencyresponsebin/init(mfrequency:mmagnitude:)"
---

# init(mFrequency:mMagnitude:)

## Declaration

```swift
init(mFrequency: Float64, mMagnitude: Float64)
```