---
title: channelLayout
framework: avfaudio
role: symbol
role_heading: Instance Property
path: avfaudio/avaudioformat/channellayout
---

# channelLayout

The underlying audio channel layout.

## Declaration

```swift
var channelLayout: AVAudioChannelLayout? { get }
```

## Discussion

Discussion Only formats with more than two channels require channel layouts.

## See Also

### Getting Audio Format Values

- [sampleRate](avfaudio/avaudioformat/samplerate.md)
- [channelCount](avfaudio/avaudioformat/channelcount.md)
- [formatDescription](avfaudio/avaudioformat/formatdescription.md)