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local_tts_config.md

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Offline Python TTS Configuration

Offline Python TTS uses a dedicated optional config file so platform-specific driver problems can be traced back to one place, while still allowing a no-key, no-network fallback with default settings.

Recommended Path

  1. Open Tools > Settings.
  2. Set TTS Provider to Offline Python TTS.
  3. Optionally point Local TTS Config File at a dedicated config file.
  4. Choose a driver or leave it on auto.
  5. Use Test Offline Python TTS.

Optional .local_tts.env Format

[LOCAL_TTS]
driver_name = auto

Supported driver values in the UI are:

  • auto
  • sapi5
  • nsss
  • espeak

Notes

  • Offline Python TTS is backed by pyttsx3 and works without cloud credentials.
  • It is intended as a basic local fallback for privacy-sensitive or offline work, not as a full feature match for cloud providers.
  • SSML, style prompts, and multi-speaker generation are not supported in this provider path.
  • Voice availability depends on the operating system and installed local speech engines.
  • According to the current pyttsx3 project docs, common platform engines are SAPI5 on Windows, NSSpeechSynthesizer on macOS, and eSpeak on Linux.