---
title: kAudioAggregateDevicePropertyMasterSubDevice
framework: coreaudio
role: symbol
role_heading: Global Variable
path: coreaudio/kaudioaggregatedevicepropertymastersubdevice
---

# kAudioAggregateDevicePropertyMasterSubDevice

## Declaration

```swift
var kAudioAggregateDevicePropertyMasterSubDevice: AudioObjectPropertySelector { get }
```

## See Also

### Constants

- [kAudioAggregateDevicePropertyActiveSubDeviceList](coreaudio/kaudioaggregatedevicepropertyactivesubdevicelist.md)
- [kAudioAggregateDevicePropertyComposition](coreaudio/kaudioaggregatedevicepropertycomposition.md)
- [kAudioAggregateDevicePropertyFullSubDeviceList](coreaudio/kaudioaggregatedevicepropertyfullsubdevicelist.md)
- [kAudioAggregateDevicePropertyClockDevice](coreaudio/kaudioaggregatedevicepropertyclockdevice.md)