---
title: "init(mFormat:mSampleRateRange:)"
framework: coreaudio
role: symbol
role_heading: Initializer
path: "coreaudio/audiostreamrangeddescription/init(mformat:msampleraterange:)"
---

# init(mFormat:mSampleRateRange:)

## Declaration

```swift
init(mFormat: AudioStreamBasicDescription, mSampleRateRange: AudioValueRange)
```