---
title: availableVoicesDidChangeNotification
framework: avfaudio
role: symbol
role_heading: Type Property
path: avfaudio/avspeechsynthesizer/availablevoicesdidchangenotification
---

# availableVoicesDidChangeNotification

A notification that indicates a change in available voices for speech synthesis.

## Declaration

```swift
class let availableVoicesDidChangeNotification: NSNotification.Name
```

## Discussion

Discussion The system posts this notification when available voices for speech synthesis on the system change. For example, a new personal voice becomes available and the user authorized the app to access personal voices. Or new 3rd party voices become available through an app the user downloads.

## See Also

### Enabling personal voices

- [personalVoiceAuthorizationStatus](avfaudio/avspeechsynthesizer/personalvoiceauthorizationstatus-swift.type.property.md)
- [requestPersonalVoiceAuthorization(completionHandler:)](avfaudio/avspeechsynthesizer/requestpersonalvoiceauthorization(completionhandler:).md)
- [AVSpeechSynthesizer.PersonalVoiceAuthorizationStatus](avfaudio/avspeechsynthesizer/personalvoiceauthorizationstatus-swift.enum.md)