---
title: kSpeechInputModeProperty
framework: applicationservices
role: symbol
role_heading: Global Variable
path: applicationservices/kspeechinputmodeproperty
---

# kSpeechInputModeProperty

Get or set the speech channel’s current text-processing mode.

## Declaration

```swift
let kSpeechInputModeProperty: CFString
```

## Discussion

Discussion The value associated with this property is a CFString object that specifies whether the channel is currently in text input mode or phoneme input mode. The constants kSpeechModeText and kSpeechModePhoneme (defined in Speech-Channel Modes for Core Foundation-based Functions) are the possible values of this string. When in phoneme-processing mode, a text string is interpreted to be a series of characters representing various phonemes and prosodic controls. Some synthesizers might support additional input-processing modes and define constants for these modes. When in text-processing mode, you can also specify how characters and numbers should be processed using the kSpeechCharacterModeProperty and kSpeechNumberModeProperty. This property works with the CopySpeechProperty(_:_:_:) and SetSpeechProperty(_:_:_:) functions.