---
title: maximumOutputNumberOfChannels
framework: avfaudio
role: symbol
role_heading: Instance Property
path: avfaudio/avaudiosession/maximumoutputnumberofchannels
---

# maximumOutputNumberOfChannels

The maximum number of output channels available for the current audio route.

## Declaration

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

## See Also

### Setting the number of output channels

- [preferredOutputNumberOfChannels](avfaudio/avaudiosession/preferredoutputnumberofchannels.md)
- [setPreferredOutputNumberOfChannels(_:)](avfaudio/avaudiosession/setpreferredoutputnumberofchannels(_:).md)
- [outputNumberOfChannels](avfaudio/avaudiosession/outputnumberofchannels.md)