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# AVAudioSession.PortOverride

Constants for use with the [`overrideOutputAudioPort(_:)`](/documentation/AVFAudio/AVAudioSession/overrideOutputAudioPort(_:)) method.

```
enum PortOverride
```

## Topics

### Port Override Types

[`AVAudioSession.PortOverride.none`](/documentation/AVFAudio/AVAudioSession/PortOverride/none)

A value that indicates not to override the output audio port.

[`AVAudioSession.PortOverride.speaker`](/documentation/AVFAudio/AVAudioSession/PortOverride/speaker)

A value that indicates to override the current inputs and outputs, and route audio to the built-in speaker and microphone.


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