{"data":{"slug":"rhvoice-rhvoice","name":"RHVoice","tagline":"a free and open source speech synthesizer for Russian and other languages","github_url":"https://github.com/RHVoice/RHVoice","owner":"RHVoice","repo":"RHVoice","owner_avatar_url":"https://avatars.githubusercontent.com/u/61079791?v=4","primary_language":"C++","stars":1826,"forks":266,"topics":["android","brazilian-portuguese","english","esperanto","georgian","hts","kyrgyz","linux","russian","speech-synthesis","tatar","text-to-speech","tts","ukrainian","windows"],"archived":false,"github_pushed_at":"2026-07-20T15:39:40+00:00","maintenance_label":"Active","url":"https://www.graphcanon.com/tools/rhvoice-rhvoice","markdown_url":"https://www.graphcanon.com/tools/rhvoice-rhvoice.md","api_url":"https://www.graphcanon.com/api/graphcanon/tools/rhvoice-rhvoice","graph_url":"https://www.graphcanon.com/api/graphcanon/graph?tool=rhvoice-rhvoice","description":"a free and open source speech synthesizer for Russian and other languages","homepage_url":"https://rhvoice.org","license":"GPL-2.0","open_issues":168,"watchers":72,"ai_summary":"RHVoice is an open-source text-to-speech system that supports multiple languages including Russian, English, Brazilian Portuguese, Esperanto, Georgian, Ukrainian, Kyrgyz, Tatar, Macedonian, Albanian, and Polish. It employs statistical parametric synthesis technology.","readme_excerpt":"# RHVoice\n\nRHVoice is a free and open-source speech synthesizer.\n\n## Features\n\n### Speech synthesis method\n\nRHVoice uses [statistical parametric synthesis](https://en.wikipedia.org/wiki/Speech_synthesis#HMM-based_synthesis).\nIt relies on existing open-source speech technologies (mainly\n[HTS](https://hts.sp.nitech.ac.jp) and related software).\n\nVoices are built from recordings of natural speech. They have small footprints,\nbecause only statistical models are stored on users' computers. And though the\nvoices lack the naturalness of the synthesizers which generate speech by\ncombining segments of the recordings themselves, they are still very\nintelligible and resemble the speakers who recorded the source material.\n\n### Supported languages\n\nInitially, RHVoice could speak only Russian. Now it also supports:\n\n* American and Scottish English\n* Brazilian Portuguese\n* Esperanto\n* Georgian\n* Ukrainian\n* Kyrgyz\n* Tatar\n* Macedonian\n* Albanian\n* Polish\n\nIn theory, it is possible to implement support for\nother languages, if all the necessary resources can be found or\ncreated.\n\n### Synthesis example\n\nIf you want to listen to an example of speech synthesis, You can use the TTS\nservice on [this page](https://data2data.ru/tts/).\n\n### Supported platforms\n\nRHVoice supports the following platforms:\n\n* Windows (prebuilt binaries is available in documentation)\n* GNU/Linux (building instructions and packaging status\n  can be found in \"Compiling instructions\" section of documentation.\n* Android (can be installed thru\n  [F-Droid](https://f-droid.org/packages/com.github.olga_yakovleva.rhvoice.android/)\n  or [Google Play](https://play.google.com/store/apps/details?id=com.github.olga_yakovleva.rhvoice.android)\n\nIt is compatible with standard text-to-speech interfaces on these platforms:\nSAPI5 on Windows, [Speech Dispatcher](https://devel.freebsoft.org/speechd) on\nGNU/Linux and Android's text-to-speech APIs. It can also be used by the\n[NVDA screen reader](https://www.nvaccess.org) directly (the driver is provided\nby RHVoice itself).\n\n## Documentation\n\nAll prebuild binaries packages, main\nand legal information and more\nare available in three languages:\n\n* [English](doc/en/index.md)\n* [Русский](doc/ru/index.md)\n* [Українська](doc/ua/index.md)\n\n## Community\n\n### Official\n\n* [GitHub Discussions](https://github.com/RHVoice/RHVoice/discussions/)\n* [Mailing list](https://groups.io/g/RHVoice-rus) (Russian)\n\n### Unofficial\n\n* IRC channel: `#rhvoice` at [irc.libera.chat](ircs://irc.libera.chat:6697)\n* Matrix room: [#rhvoice:libera.chat](https://matrix.to/#/#rhvoice:libera.chat)","github_created_at":"2010-07-28T11:35:44+00:00","created_at":"2026-07-11T12:09:36.971598+00:00","updated_at":"2026-07-29T18:00:38.075263+00:00","categories":[{"slug":"speech-audio","name":"Speech & Audio","url":"https://www.graphcanon.com/categories/speech-audio","markdown_url":"https://www.graphcanon.com/categories/speech-audio.md","api_url":"https://www.graphcanon.com/api/graphcanon/categories/speech-audio"}],"tags":[{"slug":"brazilian-portuguese","name":"brazilian portuguese"},{"slug":"english","name":"english"},{"slug":"esperanto","name":"esperanto"},{"slug":"georgian","name":"georgian"},{"slug":"kyrgyz","name":"kyrgyz"},{"slug":"russian","name":"russian"},{"slug":"tatar","name":"tatar"},{"slug":"ukrainian","name":"ukrainian"}],"trust":{"provenance":{"is_fork":false,"github_id":802699,"owner_type":"Organization","methodology":"github_public_v1","parent_repo":null,"near_duplicate_slugs":[]},"computed_at":"2026-07-29T18:00:37.186Z","maintenance":{"label":"Active","score":82,"methodology":"github_public_v1","releases_90d":0,"days_since_push":9,"last_release_at":"2026-03-31T10:02:32Z"},"security_summary":{"status":"no_lockfile","scanner":null,"low_count":0,"high_count":0,"last_scan_at":"2026-07-11T12:09:41.928Z","medium_count":0,"scan_profile":"none","critical_count":0}},"capability_facts":{"scan":{"source":"repo_scan","observed_at":"2026-07-29T18:00:37.800Z"},"languages":{"value":["c++"],"source":"github.language","observed_at":"2026-07-29T18:00:37.800Z"},"license_spdx":{"value":"GPL-2.0","source":"github.license","observed_at":"2026-07-29T18:00:37.800Z"}},"decision_facts":{"hosting":null,"pricing":null,"requirements":null,"constraints":null,"when_to_use":["- When you need support for less commonly supported languages such as Kyrgyz, Tatar, or Albanian.","- If your application requires high intelligibility within a small memory footprint on platforms like Windows, GNU/Linux, and Android."],"when_not_to_use":["- Avoid if seeking support exclusively for widely used languages like Spanish or Mandarin, where other options may offer more resources and community support.","- Not ideal in scenarios where the naturalness of speech synthesis is critical over intelligibility and memory efficiency."],"source":"enrich:decision_facts","observed_at":"2026-07-17T01:18:57.006Z"},"constraint_facets":null,"decision_summary":[{"label":"Adopt for","value":"RHVoice is an open-source text-to-speech system developed for Russian and multiple other languages employing statistical parametric synthesis."}]}}