RHVoice

Free plan AndroidLinuxWindows

What RHVoice is

RHVoice is a free, open-source speech synthesizer for Android, Linux, and Windows. It converts text to speech and can export WAV files. The project is intended to help visually impaired people use screen readers with free voices in their native languages. RHVoice uses statistical parametric synthesis based mainly on HTS and other open-source speech technologies. Voices come from natural speech recordings, while statistical models are stored on the user’s computer. The language list includes Albanian, Croatian, Czech, English, Esperanto, Georgian, Kyrgyz, Luxembourgish, Macedonian, Nepali, Polish, Brazilian Portuguese, Romanian, Russian, Serbian, Setswana, Slovak, Spanish, Tatar, Turkmen, Ukrainian, Uzbek, and Southern Vietnamese. Windows support includes NVDA and Microsoft Speech API Version 5 applications such as JAWS. Android voices work with TalkBack and other text-to-speech apps. Linux connects through Speech Dispatcher, used by Orca. Linux installation can use Snap, distribution packages, or source compilation.

Who it suits

RHVoice suits screen-reader users, especially visually impaired people seeking free voices in their native languages. It also fits developers and users on Android, Linux, or Windows who need speech synthesis and WAV export.

What it does well

Free and open-source speech synthesizer
Supports Android, Linux, and Windows
Lists voices in many languages
Exports generated speech as WAV
Works with NVDA, JAWS, TalkBack, and Orca

What to know first

Linux voices require separate command-line installation
Orca may need manual Speech Dispatcher connection
Some voices restrict commercial use
No free trial is offered

Plans

Plan	Billed and limits	Price
RHVoice	Free and open-source speech synthesizer; some voice licenses restrict commercial use	Free

As rhvoice.org lists them, read 12 Oct 2026. The maker's own page has the final word.

Verdict

RHVoice provides multilingual speech synthesis at no cost across three operating systems, with integrations for major screen-reading tools. Linux setup can require extra manual steps, and voice licenses may limit commercial use.

Facts from RHVoice's own pages

Android integrations: The RHVoice Android app provides downloadable voices and can be used with TalkBack and other text-to-speech apps. · rhvoice.org, 12 Oct 2026
Export formats: WAV · rhvoice.org, 20 Sept 2026
Free plan: Yes · rhvoice.org, 20 Sept 2026
Intended users: The project aims to help visually impaired people use screen readers with free voices in their native languages. · rhvoice.org, 12 Oct 2026
Languages: The language page lists Albanian, Croatian, Czech, English, Esperanto, Georgian, Kyrgyz, Luxembourgish, Macedonian, Nepali, Polish, Brazilian Portuguese, Romanian, Russian, Serbian, Setswana, Slovak, Spanish, Tatar, Turkmen, Ukrainian, Uzbek, and Southern Vietnamese. · rhvoice.org, 12 Oct 2026
License: The main library is LGPL v2.1 or later, while the combination with MAGE is GPL v3 or later; some individual voices have separate restrictions. · github.com, 12 Oct 2026
Linux installation: Linux installation options include a Snap package, distribution-specific packages, and compiling from source. · rhvoice.org, 12 Oct 2026
Linux integration: On Linux, RHVoice connects to Speech Dispatcher, which Orca uses to work with text-to-speech engines. · rhvoice.org, 12 Oct 2026
Linux limitation: The Snap installs the engine and Speech Dispatcher module, while voices must be installed separately using the command-line voice manager. · rhvoice.org, 12 Oct 2026
Linux setup note: The page says Orca users may need to connect RHVoice to Speech Dispatcher manually because automatic registration is not known to be available. · rhvoice.org, 12 Oct 2026
Platforms: windows,linux,android · rhvoice.org, 20 Sept 2026
Support: The project lists GitHub Discussions and a Russian-language mailing list as official community channels. · github.com, 12 Oct 2026
Synthesis method: RHVoice uses statistical parametric synthesis based on open-source speech technologies, mainly HTS. · github.com, 12 Oct 2026
Voice licensing limit: The license page says RHVoice Lab voices are CC BY-NC-ND 4.0, and requests for integration into products require approval from the speaker and team. · github.com, 12 Oct 2026
Voices: Its voices are built from natural speech recordings and store statistical models on users’ computers. · github.com, 12 Oct 2026
What it does: RHVoice is a free, open-source multilingual speech synthesizer. · rhvoice.org, 12 Oct 2026
Windows integrations: RHVoice works with NVDA and with Windows applications compatible with Microsoft Speech API Version 5, including JAWS. · rhvoice.org, 12 Oct 2026

Where RHVoice stands on Freedom251

Text-to-Speech Software#87 of 223
Text-to-speech tools#96 of 232