HTC Desire 816 User Manual page 167

167 Settings and security
TalkBack language settings
1. Go to Settings, and then tap Accessibility.
2. Tap Text-to-speech output > Google Text-to-speech Engine, and do one of the
following:
Select a different
language
Install a language
3. Select the language you want to use.
Not all languages are supported.
Tap Language.
Tap Install voice data and tap Download next to the
language you want. After the language is downloaded
and installed, press , and then tap Language.