Comparison
espeak-ng vs metavoice-src
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 metavoice-src if metavoice-src is an AI-driven repository focused on producing human-like expressive text-to-speech (TTS) systems using deep learning and PyTorch, with specific requirements such as minimum 12GB GPU VRAM.
Markdown twin · espeak-ng alternatives · metavoice-src alternatives
GraphCanon updated 3w
vs
Trust & integrity
| Signal | espeak-ng | metavoice-src |
|---|---|---|
| Maintenance | Very active (1d since push) As of 3w · github_public_v1 | Dormant (728d since push) As of 3w · github_public_v1 |
| Provenance | Not a fork · Organization account As of 3w · github_public_v1 | Not a fork · Organization account As of 3w · github_public_v1 |
| OSV dependency advisories | No lockfile (source not queried) As of 1mo · osv@v1 | Published findings As of 1mo · 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
- metavoice-src
- Foundational model for human-like, expressive TTS
Stars
- espeak-ng
- 6.7k
- metavoice-src
- 4.2k
Forks
- espeak-ng
- 1.3k
- metavoice-src
- 693
Open issues
- espeak-ng
- 594
- metavoice-src
- 64
Language
- espeak-ng
- C
- metavoice-src
- Python
Adopt for
- espeak-ng
- eSpeak NG: Free text-to-speech engine with over a hundred languages and accents in C under GPL-3.0
- metavoice-src
- Metavoice-src is an AI-driven repository focused on producing human-like expressive text-to-speech (TTS) systems using deep learning and PyTorch, with specific requirements such as minimum 12GB GPU VRAM.
Persona
- espeak-ng
- -
- metavoice-src
- -
Runtime
- espeak-ng
- -
- metavoice-src
- -
License
- espeak-ng
- GPL-3.0
- metavoice-src
- Apache-2.0
Last pushed
- espeak-ng
- Jul 27, 2026
- metavoice-src
- Jul 30, 2024
Categories
- espeak-ng
- Speech & Audio
- metavoice-src
- Speech & Audio
Trust and health
Maintenance
- espeak-ng
- Very active (96%)
- metavoice-src
- Dormant (18%)
Days since push
- espeak-ng
- 1d
- metavoice-src
- 728d
Open issues (now)
- espeak-ng
- 594
- metavoice-src
- 64
OSV dependency advisories
- espeak-ng
- No lockfile (source not queried)
- metavoice-src
- Published findings
Full report
- espeak-ng
- Trust report
- metavoice-src
- Trust report
Choose espeak-ng if…
- espeak-ng is primarily C; metavoice-src is Python.
- License: espeak-ng is GPL-3.0, metavoice-src is Apache-2.0.
- Tags unique to espeak-ng: android, espeak, espeak-ng.
- 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 metavoice-src if…
- metavoice-src is primarily Python; espeak-ng is C.
- License: metavoice-src is Apache-2.0, espeak-ng is GPL-3.0.
- Tags unique to metavoice-src: ai, deep-learning, pytorch, speech.
- metavoice-src ships Docker support for self-hosted deployment.
- When aiming for high-fidelity human-like TTS quality leveraging advanced deep learning approaches
When NOT to use metavoice-src
- For users lacking a GPU with at least 12GB VRAM
- Without Python version 3.10 to 3.12, metavoice-src might not function properly
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 Jul 29, 2026
- GitHub forks (espeak-ng/espeak-ng) · observed Jul 29, 2026
- Last push (espeak-ng/espeak-ng) · observed Jul 27, 2026
- License file (GPL-3.0) · observed Jul 29, 2026
- Decision facts (enrichment) · observed Jul 17, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
- GitHub stars (metavoiceio/metavoice-src) · observed Jul 29, 2026
- GitHub forks (metavoiceio/metavoice-src) · observed Jul 29, 2026
- Last push (metavoiceio/metavoice-src) · observed Jul 30, 2024
- License file (Apache-2.0) · observed Jul 29, 2026
- Decision facts (enrichment) · observed Jul 17, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
GitHub stars on cards: espeak-ng 6.7k · metavoice-src 4.2k (synced Jul 29, 2026).
Common questions
- What is the difference between espeak-ng and metavoice-src?
- espeak-ng: Open source speech synthesizer supporting more than hundred languages and accents. metavoice-src: Foundational model for human-like, expressive TTS. See the comparison table for live GitHub stats and shared categories.
- When should I choose espeak-ng over metavoice-src?
- Choose espeak-ng over metavoice-src when espeak-ng is primarily C; metavoice-src is Python; License: espeak-ng is GPL-3.0, metavoice-src is Apache-2.0; Tags unique to espeak-ng: android, espeak, espeak-ng; When multilingual support across over a hundred languages is required.
- When should I choose metavoice-src over espeak-ng?
- Choose metavoice-src over espeak-ng when metavoice-src is primarily Python; espeak-ng is C; License: metavoice-src is Apache-2.0, espeak-ng is GPL-3.0; Tags unique to metavoice-src: ai, deep-learning, pytorch, speech; metavoice-src ships Docker support for self-hosted deployment; When aiming for high-fidelity human-like TTS quality leveraging advanced deep learning approaches.
- 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 metavoice-src?
- For users lacking a GPU with at least 12GB VRAM Without Python version 3.10 to 3.12, metavoice-src might not function properly
- Is espeak-ng or metavoice-src more popular on GitHub?
- espeak-ng has more GitHub stars (6,688 vs 4,203). Stars measure visibility, not whether either tool fits your constraints.
- Are espeak-ng and metavoice-src open source?
- Yes - both are open-source projects on GitHub (espeak-ng: GPL-3.0, metavoice-src: Apache-2.0).
- Where can I find alternatives to espeak-ng or metavoice-src?
- GraphCanon lists graph-backed alternatives at espeak-ng alternatives and metavoice-src alternatives (espeak-ng markdown twin, metavoice-src 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 metavoice-src?
- espeak-ng: Very active. metavoice-src: Dormant. 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 metavoice-src?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: espeak-ng trust report; metavoice-src trust report.