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paseo/public-docs/voice.md
Mohamed Boudra 1a8fdcd388 Configure STT language from settings (#941)
* Configure STT language from settings

* Update websocket speech mock for language config
2026-05-12 15:03:53 +08:00

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---
title: Voice
description: Paseo voice architecture, local-first model execution, and provider configuration.
nav: Voice
order: 9
---
# Voice
Paseo has first-class voice support for dictation and realtime conversations with your coding environment.
## Philosophy
Voice is local-first. You can run speech fully on-device, or choose OpenAI for speech features. For voice reasoning/orchestration, Paseo reuses agent providers already installed and authenticated on your machine.
This keeps credentials and execution in your environment and avoids introducing a separate cloud-only voice stack.
## Architecture
- Speech I/O: STT and TTS providers per feature (`local` or `openai`)
- Local speech runtime: ONNX models executed on CPU by default
- Voice LLM orchestration: hidden agent session using your configured provider (`claude`, `codex`, or `opencode`)
- Tooling path: MCP stdio bridge for voice tools and agent control
## Local Speech
Local speech defaults to model IDs `parakeet-tdt-0.6b-v3-int8` (STT) and `kokoro-en-v0_19` (TTS, speaker 0 / voice 00). STT language defaults to `en`.
Missing models are downloaded at daemon startup into `$PASEO_HOME/models/local-speech`. Downloads happen only for missing files.
```json
{
"version": 1,
"features": {
"dictation": {
"stt": { "provider": "local", "model": "parakeet-tdt-0.6b-v3-int8", "language": "en" }
},
"voiceMode": {
"llm": { "provider": "claude", "model": "haiku" },
"stt": { "provider": "local", "model": "parakeet-tdt-0.6b-v3-int8", "language": "en" },
"tts": { "provider": "local", "model": "kokoro-en-v0_19", "speakerId": 0 }
}
},
"providers": {
"local": {
"modelsDir": "~/.paseo/models/local-speech"
}
}
}
```
Set `features.dictation.stt.language` for dictation and `features.voiceMode.stt.language` for realtime voice. If voice language is omitted, Paseo uses the dictation language before falling back to `en`.
## OpenAI Speech Option
You can switch dictation, voice STT, and voice TTS to OpenAI by setting provider fields to `openai` and providing `OPENAI_API_KEY`.
```json
{
"version": 1,
"features": {
"dictation": { "stt": { "provider": "openai" } },
"voiceMode": {
"stt": { "provider": "openai" },
"tts": { "provider": "openai" }
}
},
"providers": {
"openai": { "apiKey": "..." }
}
}
```
## Environment Variables
- `OPENAI_API_KEY`, OpenAI speech credentials
- `PASEO_VOICE_LLM_PROVIDER`, voice agent provider override
- `PASEO_LOCAL_MODELS_DIR`, local model storage directory
- `PASEO_DICTATION_LOCAL_STT_MODEL`, local dictation STT model ID
- `PASEO_VOICE_LOCAL_STT_MODEL`, `PASEO_VOICE_LOCAL_TTS_MODEL`, local voice STT/TTS model IDs
- `PASEO_DICTATION_LANGUAGE`, dictation STT language
- `PASEO_VOICE_LANGUAGE`, realtime voice STT language; falls back to `PASEO_DICTATION_LANGUAGE` when unset
- `PASEO_VOICE_LOCAL_TTS_SPEAKER_ID`, `PASEO_VOICE_LOCAL_TTS_SPEED`, optional local voice TTS tuning
## Operational Notes
Realtime voice can launch and control agents. Treat voice prompts with the same care as direct agent instructions, especially when specifying working directories or destructive operations.