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# AudioChannelDescription

A structure that describes a channel of audio data.

```
struct AudioChannelDescription
```

## Topics

### Creating a Channel Description

[`init()`](/documentation/CoreAudioTypes/AudioChannelDescription/init())

Creates an empty channel description.

[`init(mChannelLabel:mChannelFlags:mCoordinates:)`](/documentation/CoreAudioTypes/AudioChannelDescription/init(mChannelLabel:mChannelFlags:mCoordinates:))

Creates a channel description with a label, flags, and coordinates.

### Accessing the Data

[`mChannelFlags`](/documentation/CoreAudioTypes/AudioChannelDescription/mChannelFlags)

The audio channel flags that indicate how to interpret the channel coordinates.

[`mChannelLabel`](/documentation/CoreAudioTypes/AudioChannelDescription/mChannelLabel)

A label that describes the audio channel.

[`mCoordinates`](/documentation/CoreAudioTypes/AudioChannelDescription/mCoordinates)

The coordinates that specify a precise speaker location.

[`AudioChannelLabel`](/documentation/CoreAudioTypes/AudioChannelLabel)

Identifies how an audio data channel is to be used.

[Audio Channel Coordinates](/documentation/CoreAudioTypes/audio-channel-coordinates)

Used in the `mChannelFlags` field of an [`AudioChannelDescription`](/documentation/CoreAudioTypes/AudioChannelDescription) structure.

[`AudioChannelFlags`](/documentation/CoreAudioTypes/AudioChannelFlags)

Constants that define the audio channel flags of an audio channel description.

[Audio Channel Labels](/documentation/CoreAudioTypes/audio-channel-labels)

Channel labels for use in the `mChannelLabel` field of an [`AudioChannelDescription`](/documentation/CoreAudioTypes/AudioChannelDescription) structure.

### Accessing the Data

[`mChannelFlags`](/documentation/CoreAudioTypes/AudioChannelDescription/mChannelFlags)

The audio channel flags that indicate how to interpret the channel coordinates.

[`mChannelLabel`](/documentation/CoreAudioTypes/AudioChannelDescription/mChannelLabel)

A label that describes the audio channel.

[`mCoordinates`](/documentation/CoreAudioTypes/AudioChannelDescription/mCoordinates)

The coordinates that specify a precise speaker location.

[`AudioChannelLabel`](/documentation/CoreAudioTypes/AudioChannelLabel)

Identifies how an audio data channel is to be used.

[Audio Channel Coordinates](/documentation/CoreAudioTypes/audio-channel-coordinates)

Used in the `mChannelFlags` field of an [`AudioChannelDescription`](/documentation/CoreAudioTypes/AudioChannelDescription) structure.

[`AudioChannelFlags`](/documentation/CoreAudioTypes/AudioChannelFlags)

Constants that define the audio channel flags of an audio channel description.

## Relationships

### Conforms To

[`Sendable`](/documentation/Swift/Sendable)

[`BitwiseCopyable`](/documentation/Swift/BitwiseCopyable)

---

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