---
title: AVSpeechSynthesisIPANotationAttribute
framework: avfaudio
role: symbol
role_heading: Global Variable
path: avfaudio/avspeechsynthesisipanotationattribute
---

# AVSpeechSynthesisIPANotationAttribute

A string that contains International Phonetic Alphabet (IPA) symbols the speech synthesizer uses to control pronunciation of certain words or phrases.

## Declaration

```swift
let AVSpeechSynthesisIPANotationAttribute: String
```

## Discussion

Discussion For example, the speech synthesizer uses an AVSpeechSynthesisIPANotationAttribute instance to control pronunciation of a proper name.

## See Also

### Creating an utterance

- [init(string:)](avfaudio/avspeechutterance/init(string:).md)
- [init(attributedString:)](avfaudio/avspeechutterance/init(attributedstring:).md)
- [init(ssmlRepresentation:)](avfaudio/avspeechutterance/init(ssmlrepresentation:)-8zam9.md)