---
title: activeSubdevices
framework: Core Audio
role: symbol
role_heading: Instance Property
platforms: [macOS 15.0+]
path: coreaudio/audiohardwareaggregatedevice/activesubdevices
---

# activeSubdevices

An array of AudioHardwareClocks for all the active subdevices in the aggregate device.

## Declaration

```swift
var activeSubdevices: [AudioHardwareClock] { get throws }
```