---
title: SpeechSyncUPP
framework: applicationservices
role: symbol
role_heading: Type Alias
path: applicationservices/speechsyncupp
---

# SpeechSyncUPP

Defines a universal procedure pointer (UPP) to a synchronization callback function.

## Declaration

```swift
typealias SpeechSyncUPP = SpeechSyncProcPtr
```

## Discussion

Discussion For more information, see the description of the SpeechSyncProcPtr callback function.