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Phonon-TTS

Phonon TTS runs Gradium's Phonon text-to-speech models and serves an OpenAI-compatible speech API (POST /v1/audio/speech), so any client with an "OpenAI TTS"…

  • AI
Phonon TTS runs Gradium's Phonon text-to-speech models and serves an OpenAI-compatible speech API (POST /v1/audio/speech), so any client with an "OpenAI TTS" setting and a custom base URL works unchanged. It can also serve the Wyoming protocol, which Home Assistant uses for local voice. It runs entirely on the CPU and is fast: Gradium's models speak faster than real time even on a Raspberry Pi. Language: PTTS_LANG is required and picks how numbers and symbols are spelled out, and which catalog voices are served; it must match the language of the checkpoint (en by default; fr for a French model, and so on). First start: downloads the default model and the voices for its language into the cache folder, and logs little until they load; watch the log. The cache folder keeps them across restarts and updates, so later starts go straight to serving. Home Assistant: set PTTS_WYOMING_ADDR to

Platform availability

Available on 1 of 9 platforms

  • Unraid
  • TrueNAS (not listed)
  • Umbrel (not listed)
  • ZimaOS (not listed)
  • Proxmox (not listed)
  • Helm (not listed)
  • Mac (not listed)
  • Windows (not listed)
  • Linux (not listed)

Health score?A 0-100 score computed nightly from four factors: maintained (40%: recent commits and steady activity), popular (25%: GitHub stars, log scale), easy to install (20%: platforms, install notes, setup guides, Docker image) and light to run (15%: minimum RAM, ARM support). When the source code has been checked, a fifth factor, security check (20%: automated scan for committed secrets, unsafe desktop-app settings, known-vulnerable dependencies and project hygiene; any serious finding caps it at 20), is added. Factors without data are left out and the rest are rescaled.

67/100 Good

Maintained
100last commit 0 days ago
Popular
52392 GitHub stars
Easy to install
201 install platform, Docker image
Light to run
No data

Based on 3 of 4 factors.

Availability: platform listings confirmed today

GitHub stars
392
Open issues
17
Last commit
2026-10-31
Latest release
v0.6.0
License
Apache-2.0
Activity
rising

Checked today - source: GitHub (gradium-ai/xn-ptts)

Resources & Compatibility

Requirements not published yet.

Checked today - source: Docker Hub image tags and published docs

First-install notes

No first-install notes yet.

Alternatives

No alternatives collected yet.

Community

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