Comparison
espeak-ng vs RHVoice
Verdict
Pick espeak-ng if eSpeak NG: Free text-to-speech engine with over a hundred languages and accents in C under GPL-3.0; pick RHVoice if rHVoice is an open-source text-to-speech system developed for Russian and multiple other languages employing statistical parametric synthesis.
Markdown twin · espeak-ng alternatives · RHVoice alternatives
GraphCanon updated Sep 20, 2026
10views this month
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Trust & integrity
| Signal | espeak-ng | RHVoice |
|---|---|---|
| Maintenance | Very active (6d since push) As of Sep 20, 2026 · github_public_v1 | Active (23d since push) As of Sep 20, 2026 · github_public_v1 |
| Provenance | Not a fork · Organization account As of Sep 20, 2026 · github_public_v1 | Not a fork · Organization account As of Sep 20, 2026 · github_public_v1 |
| OSV dependency advisories | No lockfile (source not queried) As of Jul 11, 2026 · osv@v1 | No lockfile (source not queried) As of Jul 11, 2026 · osv@v1 |
| deps.dev advisories | Not queried deps.dev@v1 | Not queried deps.dev@v1 |
| OpenSSF Scorecard | Not queried openssf-scorecard@v1 | Not queried openssf-scorecard@v1 |
Tagline
- espeak-ng
- Open source speech synthesizer supporting more than hundred languages and accents
- RHVoice
- a free and open source speech synthesizer for Russian and other languages
Stars
- espeak-ng
- 6.9k
- RHVoice
- 1.8k
Forks
- espeak-ng
- 1.3k
- RHVoice
- 270
Open issues
- espeak-ng
- 620
- RHVoice
- 171
Language
- espeak-ng
- C
- RHVoice
- C++
Adopt for
- espeak-ng
- eSpeak NG: Free text-to-speech engine with over a hundred languages and accents in C under GPL-3.0
- RHVoice
- RHVoice is an open-source text-to-speech system developed for Russian and multiple other languages employing statistical parametric synthesis.
Persona
- espeak-ng
- -
- RHVoice
- -
Runtime
- espeak-ng
- -
- RHVoice
- -
License
- espeak-ng
- GPL-3.0
- RHVoice
- GPL-2.0
Last pushed
- espeak-ng
- Sep 14, 2026
- RHVoice
- Aug 27, 2026
Categories
- espeak-ng
- Speech & Audio
- RHVoice
- Speech & Audio
Trust and health
Maintenance
- espeak-ng
- Very active (96%)
- RHVoice
- Active (82%)
Days since push
- espeak-ng
- 6d
- RHVoice
- 23d
Open issues (now)
- espeak-ng
- 620
- RHVoice
- 171
Stars delta
- espeak-ng
- +166 (30d)
- RHVoice
- +16 (30d)
Open issues delta
- espeak-ng
- +26 (30d)
- RHVoice
- +3 (30d)
Full report
- espeak-ng
- Trust report
- RHVoice
- Trust report
Choose espeak-ng if…
- espeak-ng is primarily C; RHVoice is C++.
- License: espeak-ng is GPL-3.0, RHVoice is GPL-2.0.
- Tags unique to espeak-ng: android, espeak, espeak-ng, speech-synthesis.
- When multilingual support across over a hundred languages is required.
When NOT to use espeak-ng
- Avoid if proprietary software development prohibits use of GPL-3.0 licensed tools.
- Not ideal if fine-grain control and quality over diverse accents are more important than extensive language coverage.
Choose RHVoice if…
- RHVoice is primarily C++; espeak-ng is C.
- License: RHVoice is GPL-2.0, espeak-ng is GPL-3.0.
- Tags unique to RHVoice: brazilian portuguese, english, esperanto, georgian.
- - When you need support for less commonly supported languages such as Kyrgyz, Tatar, or Albanian.
When NOT to use RHVoice
- - 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.
Explore
Sources
Every stat on this page traces to a dated GitHub sync, license file, enrichment field, or trust scan.
- GitHub stars (espeak-ng/espeak-ng) · observed Sep 20, 2026
- GitHub forks (espeak-ng/espeak-ng) · observed Sep 20, 2026
- Last push (espeak-ng/espeak-ng) · observed Sep 14, 2026
- License file (GPL-3.0) · observed Sep 20, 2026
- Decision facts (enrichment) · observed Jul 17, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
- GitHub stars (RHVoice/RHVoice) · observed Sep 20, 2026
- GitHub forks (RHVoice/RHVoice) · observed Sep 20, 2026
- Last push (RHVoice/RHVoice) · observed Aug 27, 2026
- License file (GPL-2.0) · observed Sep 20, 2026
- Decision facts (enrichment) · observed Jul 17, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
GitHub stars on cards: espeak-ng 6.9k · RHVoice 1.8k (synced Sep 20, 2026).
Common questions
- What is the difference between espeak-ng and RHVoice?
- espeak-ng: Open source speech synthesizer supporting more than hundred languages and accents. RHVoice: a free and open source speech synthesizer for Russian and other languages. See the comparison table for live GitHub stats and shared categories.
- When should I choose espeak-ng over RHVoice?
- Choose espeak-ng over RHVoice when espeak-ng is primarily C; RHVoice is C++; License: espeak-ng is GPL-3.0, RHVoice is GPL-2.0; Tags unique to espeak-ng: android, espeak, espeak-ng, speech-synthesis; When multilingual support across over a hundred languages is required.
- When should I choose RHVoice over espeak-ng?
- Choose RHVoice over espeak-ng when RHVoice is primarily C++; espeak-ng is C; License: RHVoice is GPL-2.0, espeak-ng is GPL-3.0; Tags unique to RHVoice: brazilian portuguese, english, esperanto, georgian; - When you need support for less commonly supported languages such as Kyrgyz, Tatar, or Albanian.
- When should I avoid espeak-ng?
- Avoid if proprietary software development prohibits use of GPL-3.0 licensed tools. Not ideal if fine-grain control and quality over diverse accents are more important than extensive language coverage.
- When should I avoid RHVoice?
- - 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.
- Is espeak-ng or RHVoice more popular on GitHub?
- espeak-ng has more GitHub stars (6,854 vs 1,842). Stars measure visibility, not whether either tool fits your constraints.
- Are espeak-ng and RHVoice open source?
- Yes - both are open-source projects on GitHub (espeak-ng: GPL-3.0, RHVoice: GPL-2.0).
- Where can I find alternatives to espeak-ng or RHVoice?
- GraphCanon lists graph-backed alternatives at espeak-ng alternatives and RHVoice alternatives (espeak-ng markdown twin, RHVoice markdown twin), ranked by typed relationship edges rather than popularity votes.
- Is there a machine-readable version of this comparison?
- Yes. The markdown twin at this comparison mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers.
- Which is better maintained, espeak-ng or RHVoice?
- espeak-ng: Very active. RHVoice: Active. Compare maintenance labels, days since push, and release cadence in the trust section below - stars alone do not measure maintenance.
- Where are the full trust reports for espeak-ng and RHVoice?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: espeak-ng trust report; RHVoice trust report.