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# AVAudioChannelLayout

An object that describes the roles of a set of audio channels.

```
class AVAudioChannelLayout
```

## Overview

The `AVAudioChannelLayout` class is a thin wrapper for Core Audio’s <doc://com.apple.documentation/documentation/CoreAudioTypes/AudioChannelLayout>.

## Topics

### Creating an Audio Channel Layout

[`init(layout:)`](/documentation/AVFAudio/AVAudioChannelLayout/init(layout:))

Creates an audio channel layout object from an existing one.

[`layoutWithLayout:`](/documentation/AVFAudio/AVAudioChannelLayout/layoutWithLayout:)

Creates an audio channel layout object from an existing one.

[`init(layoutTag:)`](/documentation/AVFAudio/AVAudioChannelLayout/init(layoutTag:))

Creates an audio channel layout object from a layout tag.

[`layoutWithLayoutTag:`](/documentation/AVFAudio/AVAudioChannelLayout/layoutWithLayoutTag:)

Creates an audio channel layout object from an audio channel layout tag.

### Getting Audio Channel Layout Properties

[`AVAudioChannelCount`](/documentation/AVFAudio/AVAudioChannelCount)

The number of audio channels.

[`channelCount`](/documentation/AVFAudio/AVAudioChannelLayout/channelCount)

The number of channels of audio data.

[`layout`](/documentation/AVFAudio/AVAudioChannelLayout/layout)

The underlying audio channel layout.

[`layoutTag`](/documentation/AVFAudio/AVAudioChannelLayout/layoutTag)

The audio channel’s underlying layout tag.

[`isEqual(_:)`](/documentation/AVFAudio/AVAudioChannelLayout/isEqual(_:))

Indicates whether another audio channel layout is exactly equal to the current layout.


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