---
title: kAudioUnitSubType_StereoMixer
framework: audiotoolbox
role: symbol
role_heading: Global Variable
path: audiotoolbox/kaudiounitsubtype_stereomixer
---

# kAudioUnitSubType_StereoMixer

An audio unit that can have any number of input buses, each of which is mono or stereo, and one stereo output bus.

## Declaration

```swift
var kAudioUnitSubType_StereoMixer: UInt32 { get }
```

## See Also

### Constants

- [kAudioUnitSubType_3DMixer](audiotoolbox/kaudiounitsubtype_3dmixer.md)