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# AVAudioSessionChannelDescription

A class that describes a hardware channel on the current device.

```
class AVAudioSessionChannelDescription
```

## Topics

### Getting the Channel Information

[`channelName`](/documentation/AVFAudio/AVAudioSessionChannelDescription/channelName)

The descriptive name for the channel.

[`channelNumber`](/documentation/AVFAudio/AVAudioSessionChannelDescription/channelNumber)

The index of this channel in its owning port’s array of channels.

[`owningPortUID`](/documentation/AVFAudio/AVAudioSessionChannelDescription/owningPortUID)

The unique identifier (UID) for this channel’s owning port.

[`channelLabel`](/documentation/AVFAudio/AVAudioSessionChannelDescription/channelLabel)

A description of the physical location of this channel.

## Relationships

### Conforms To

[`NSObjectProtocol`](/documentation/ObjectiveC/NSObjectProtocol)

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

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

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

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

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

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

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

### Inherits From

[`NSObject-swift.class`](/documentation/ObjectiveC/NSObject-swift.class)

---

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