---
title: currentHardwareOutputNumberOfChannels
framework: avfaudio
role: symbol
role_heading: Instance Property
path: avfaudio/avaudiosession/currenthardwareoutputnumberofchannels
---

# currentHardwareOutputNumberOfChannels

The number of audio hardware output channels.

## Declaration

```swift
var currentHardwareOutputNumberOfChannels: Int { get }
```

## See Also

### Inspecting audio hardware

- [currentHardwareInputNumberOfChannels](avfaudio/avaudiosession/currenthardwareinputnumberofchannels.md)
- [currentHardwareSampleRate](avfaudio/avaudiosession/currenthardwaresamplerate.md)
- [inputIsAvailable](avfaudio/avaudiosession/inputisavailable.md)
- [preferredHardwareSampleRate](avfaudio/avaudiosession/preferredhardwaresamplerate.md)
- [setPreferredHardwareSampleRate(_:)](avfaudio/avaudiosession/setpreferredhardwaresamplerate(_:).md)