---
title: Speech-Channel Information Constants
framework: applicationservices
role: collectionGroup
path: applicationservices/speech_synthesis_manager/1552228-speech-channel_information_constants
---

# Speech-Channel Information Constants

Selectors that can be passed to the GetSpeechInfo or SetSpeechInfo functions.

## Overview

Overview See the GetSpeechInfo and SetSpeechInfo functions.

## Topics

### Constants

- [soStatus](applicationservices/sostatus.md)
- [soErrors](applicationservices/soerrors.md)
- [soInputMode](applicationservices/soinputmode.md)
- [soCharacterMode](applicationservices/socharactermode.md)
- [soNumberMode](applicationservices/sonumbermode.md)
- [soRate](applicationservices/sorate.md)
- [soPitchBase](applicationservices/sopitchbase.md)
- [soPitchMod](applicationservices/sopitchmod.md)
- [soVolume](applicationservices/sovolume.md)
- [soSynthType](applicationservices/sosynthtype.md)
- [soRecentSync](applicationservices/sorecentsync.md)
- [soPhonemeSymbols](applicationservices/sophonemesymbols.md)
- [soCurrentVoice](applicationservices/socurrentvoice.md)
- [soCommandDelimiter](applicationservices/socommanddelimiter.md)
- [soReset](applicationservices/soreset.md)
- [soCurrentA5](applicationservices/socurrenta5.md)
- [soRefCon](applicationservices/sorefcon.md)
- [soTextDoneCallBack](applicationservices/sotextdonecallback.md)
- [soSpeechDoneCallBack](applicationservices/sospeechdonecallback.md)
- [soSyncCallBack](applicationservices/sosynccallback.md)
- [soErrorCallBack](applicationservices/soerrorcallback.md)
- [soPhonemeCallBack](applicationservices/sophonemecallback.md)
- [soWordCallBack](applicationservices/sowordcallback.md)
- [soSynthExtension](applicationservices/sosynthextension.md)
- [soSoundOutput](applicationservices/sosoundoutput.md)
- [soOutputToFileWithCFURL](applicationservices/sooutputtofilewithcfurl.md)
- [soOutputToExtAudioFile](applicationservices/sooutputtoextaudiofile.md)
- [soPhonemeOptions](applicationservices/sophonemeoptions.md)
- [soOutputToAudioDevice](applicationservices/sooutputtoaudiodevice.md)