---
title: Speech Error Keys
framework: applicationservices
role: collectionGroup
role_heading: API Collection
path: applicationservices/speech_synthesis_manager/speech_error_keys
---

# Speech Error Keys

Keys used with the kSpeechErrorsProperty property to describe errors encountered during speech processing and production.

## Topics

### Constants

- [kSpeechErrorCount](applicationservices/kspeecherrorcount.md)
- [kSpeechErrorOldest](applicationservices/kspeecherroroldest.md)
- [kSpeechErrorOldestCharacterOffset](applicationservices/kspeecherroroldestcharacteroffset.md)
- [kSpeechErrorNewest](applicationservices/kspeecherrornewest.md)
- [kSpeechErrorNewestCharacterOffset](applicationservices/kspeecherrornewestcharacteroffset.md)