Important: After you install the RHVoice app, you must not switch Android to use it as your text to speech system until after you install and select on of the RHVoice voices. We will repeat this important advice below.
After you have installed the App, open it, select the language for the voice you want, in the list of languages, and then tap "Install:" next to the name of the voice. Talkback will say something like, "Install" on that icon.
There is another button; TalkBack will call it "Play". When you tap that, you will hear one of two messages: Either that the voice is not installed, or the voice is installed and working. Only after you hear the second message, go to the Text-to-speech output settings on your device and select RHVoice there.
You need to download and run the installer for the voice you want, which you can obtain from one of the following links:
Latest Letícia SAPI-5 Download (Version 4.7.1019.15)
Latest Kiko SAPI-5 Download (version 4.7.1024.18)
Latest Hana SAPI-5 Download (version 4.4.1019.15)
The installer should ask you no questions, and install everything that is needed. After it finishes, please restart your screen-reader and configure its speech synthesizer settings to use RHVoice.
If the download fails, please check any anti-virus software that you are running. You may need to temporarily disable the anti-virus block, and trust the Kiko download.
Two installations are necessary: You must first install the main RHVoice add-on for N.V.D.A. You can obtain it from this link:
N.V.D.A. will ask you to restart at the end of the installation. You should refuse. Do not restart at this point. Instead, install the voice you want using the relevant link below:
This time, when N.V.D.A. offers to restart, you should restart.
When NVDA restarts, open the synthesizer selection dialog, for example, by pressing CTRL+INS+S. Please find RHVoice in the list and press enter.
RHVoice is not packaged for each different Linux distributions. But you can download and build from source from the RHVoice GitHub Repository,