65 lines
2 KiB
Markdown
65 lines
2 KiB
Markdown
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# Piper TTS (neural voice for J.A.R.V.I.S.)
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Drop-in replacement for the robotic SAPI voice. ~30 MB binary + ~60 MB Russian voice (Irina). Latency 200-500ms on i5.
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## Install
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```powershell
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cd C:\Jarvis\rust\tools\piper
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pwsh -File install.ps1
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```
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By default installs `ru_RU-irina-medium` (Russian female). To pick a different voice:
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```powershell
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pwsh -File install.ps1 -Voice ru_RU-denis-medium
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pwsh -File install.ps1 -Voice ru_RU-dmitri-medium
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pwsh -File install.ps1 -Voice ru_RU-ruslan-medium
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pwsh -File install.ps1 -Voice en_US-amy-medium # English female
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```
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Force re-download:
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```powershell
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pwsh -File install.ps1 -Force
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```
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## Use
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If `piper.exe` + a voice file are present in `tools/piper/`, J.A.R.V.I.S. auto-detects Piper on startup. No env vars required.
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To force a specific backend:
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```bat
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set JARVIS_TTS=piper :: use Piper
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set JARVIS_TTS=sapi :: force SAPI fallback
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set JARVIS_TTS=silero :: use Silero (needs tools/silero/silero_tts.py)
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```
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Override paths:
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```bat
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set JARVIS_TTS_PIPER_BIN=D:\custom\piper.exe
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set JARVIS_TTS_PIPER_VOICE=D:\voices\my-voice.onnx
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```
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## Voices catalogue
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Full list: https://huggingface.co/rhasspy/piper-voices
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Recommended for Russian:
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- `ru_RU-irina-medium` — natural female, default
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- `ru_RU-dmitri-medium` — male, clear diction
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- `ru_RU-ruslan-medium` — male, slightly deeper
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- `ru_RU-denis-medium` — male, "newsreader" tone
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## Troubleshooting
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**"piper.exe not found"** — install script failed; check `install.ps1` output. The fallback is SAPI — assistant still works, just with the robotic voice.
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**"no .onnx voice in voices/"** — voice download failed (HuggingFace blocked?). Manually download from https://huggingface.co/rhasspy/piper-voices/tree/main/ru/ru_RU/irina/medium and drop both `.onnx` + `.onnx.json` into `voices/`.
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**Voice sounds wrong** — try a different model. Each Russian voice has a different timbre.
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**No audio output** — Piper writes to a temp wav, then plays via `System.Media.SoundPlayer` synchronously. Check that the default playback device isn't muted.
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