---
title: AVAudioSession.RouteChangeReason
framework: avfaudio
role: symbol
role_heading: Enumeration
path: avfaudio/avaudiosession/routechangereason
---

# AVAudioSession.RouteChangeReason

Constants that indicate the reason for an audio route change.

## Declaration

```swift
enum RouteChangeReason
```

## Mentioned in

Responding to audio route changes

## Overview

Overview These constants appear as possible values for the AVAudioSessionRouteChangeReasonKey key in the userInfo dictionary in a routeChangeNotification notification.

## Topics

### Route Change Reasons

- [AVAudioSession.RouteChangeReason.unknown](avfaudio/avaudiosession/routechangereason/unknown.md)
- [AVAudioSession.RouteChangeReason.newDeviceAvailable](avfaudio/avaudiosession/routechangereason/newdeviceavailable.md)
- [AVAudioSession.RouteChangeReason.oldDeviceUnavailable](avfaudio/avaudiosession/routechangereason/olddeviceunavailable.md)
- [AVAudioSession.RouteChangeReason.categoryChange](avfaudio/avaudiosession/routechangereason/categorychange.md)
- [AVAudioSession.RouteChangeReason.override](avfaudio/avaudiosession/routechangereason/override.md)
- [AVAudioSession.RouteChangeReason.wakeFromSleep](avfaudio/avaudiosession/routechangereason/wakefromsleep.md)
- [AVAudioSession.RouteChangeReason.noSuitableRouteForCategory](avfaudio/avaudiosession/routechangereason/nosuitablerouteforcategory.md)
- [AVAudioSession.RouteChangeReason.routeConfigurationChange](avfaudio/avaudiosession/routechangereason/routeconfigurationchange.md)

### Initializers

- [init(rawValue:)](avfaudio/avaudiosession/routechangereason/init(rawvalue:).md)

## Relationships

### Conforms To

- [BitwiseCopyable](swift/bitwisecopyable.md)
- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [RawRepresentable](swift/rawrepresentable.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)