---
title: soCurrentA5
framework: Application Services
role: symbol
role_heading: Enumeration Case
platforms: [macOS 10.0+]
path: applicationservices/1552228-speech-channel_information_constants/socurrenta5
---

# soCurrentA5

## Declaration

```occ
soCurrentA5 = 'myA5'
```

## Discussion

Set the value that the Speech Synthesis Managerassigns to the A5 register before invoking any application-definedcallback functions for the speech channel. The A5 register mustbe set correctly if the callback functions are to be able to accessapplication global variables. The `speechInfo` parameter shouldbe set to the pointer contained in the A5 register at a time whenthe application is not executing interrupt code or to `NULL` ifyour application wishes to clear a value previously set with the `soCurrentA5` selector.

This selector works with the `SetSpeechInfo` function.