> For the complete documentation index, see [llms.txt](https://doc.sysdevmobile.com/kalipso5/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.sysdevmobile.com/kalipso5/developing/form/actions/actions-description/group-voice/native-set-tts-language-voice.md).

# Native Set TTS Language Voice

Sets the native Speech Synthesizer language and voice.

Action available for the following operating systems:

![](/files/-MMLyQTNWLRK7nJlrbHY)

### Parameters

* **Language** *\<string> -* The language to use for speech recognition, as defined by BCP 47, for example "en-US". If for example only "en" is specified, Kalipso will try to find any matching language for the "en", and result for example in "en-AU" or "en-GB", etc. Empty can be used to assume the system default language.
* **Voice** *\<numeric>*
  * 0 - Any. Uses any available voice.
  * 1 - Male
  * 2 - Female

{% hint style="warning" %}
Voice parameter is not available on Android and iOS.
{% endhint %}