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# overrideOutputAudioPort(_:)

Temporarily changes the current audio route.

```
func overrideOutputAudioPort(_ portOverride: AVAudioSession.PortOverride) throws
```

## Parameters

`portOverride`

The override option for audio output. For a list of constants, see [`AVAudioSession.PortOverride`](/documentation/AVFAudio/AVAudioSession/PortOverride).

## Discussion

If your app uses the [`playAndRecord`](/documentation/AVFAudio/AVAudioSession/Category-swift.struct/playAndRecord) category, calling this method with the [`AVAudioSession.PortOverride.speaker`](/documentation/AVFAudio/AVAudioSession/PortOverride/speaker) option causes the system to route audio to the built-in speaker and microphone regardless of other settings. This change remains in effect only until the current route changes or you call this method again with the [`AVAudioSession.PortOverride.none`](/documentation/AVFAudio/AVAudioSession/PortOverride/none) option.

If you’d prefer to permanently enable this behavior, you should instead set the category’s [`defaultToSpeaker`](/documentation/AVFAudio/AVAudioSession/CategoryOptions-swift.struct/defaultToSpeaker) option. Setting this option routes to the speaker rather than the receiver if no other accessory such as headphones are in use.

> Note:
> The preferred method for routing audio to the speaker instead of the receiver for speakerphone functionality is through the use of the <doc://com.apple.documentation/documentation/MediaPlayer> framework’s <doc://com.apple.documentation/documentation/MediaPlayer/MPVolumeView> class.

## Topics

### Data Types

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

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


---

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