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Claude Voice Input

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Local MCP server that enables voice input to Claude by transcribing microphone audio locally using faster-whisper, avoiding cloud services.

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About

Local MCP server that enables voice input to Claude by transcribing microphone audio locally using faster-whisper, avoiding cloud services.

README

Serveur MCP local pour parler a Claude au lieu de taper. Utilise faster-whisper pour la transcription entierement locale — rien n'est envoye dans le cloud.

Architecture

graph LR
    A[Microphone] -->|Audio| B[recorder.py]
    B -->|WAV bytes| C[faster-whisper]
    C -->|Texte| D[Serveur MCP]
    D -->|stdio| E[Claude Code]

    style A fill:#f9f,stroke:#333
    style E fill:#58f,stroke:#333

Flux de fonctionnement

sequenceDiagram
    participant U as Utilisateur
    participant CC as Claude Code
    participant MCP as Serveur MCP Voice
    participant R as Recorder
    participant W as Whisper

    U->>CC: "ecoute-moi"
    CC->>MCP: voice_listen(language="fr")
    MCP->>R: record_audio()
    R->>R: Capture micro + detection silence
    R-->>MCP: WAV bytes
    MCP->>W: transcribe(audio)
    W-->>MCP: Texte transcrit
    MCP-->>CC: "Bonjour, je voudrais..."
    CC->>CC: Utilise le texte comme contexte
    CC-->>U: Repond a l'instruction vocale

Composants

graph TD
    subgraph "claude-voice-input"
        S[server.py<br/>Serveur MCP FastMCP] --> R[recorder.py<br/>Capture audio + silence]
        S --> W[faster-whisper<br/>Transcription locale]
    end

    subgraph "Outils MCP exposes"
        T1[voice_listen<br/>Micro → texte]
        T2[voice_transcribe_file<br/>Fichier → texte]
    end

    S --> T1
    S --> T2

Installation rapide

curl -fsSL https://raw.githubusercontent.com/Baseline-quebec/claude-voice-input/main/install.sh | bash

Le script fait tout automatiquement :

  1. Verifie Python 3.10+
  2. Installe PortAudio si manquant
  3. Clone le repo dans ~/.claude-voice-input
  4. Cree un venv dedie et installe les dependances
  5. Configure le serveur MCP dans ~/.claude/settings.json

Avec un modele specifique

curl -fsSL https://raw.githubusercontent.com/Baseline-quebec/claude-voice-input/main/install.sh | WHISPER_MODEL=medium bash

Installation manuelle

git clone https://github.com/Baseline-quebec/claude-voice-input.git
cd claude-voice-input

# Dependance systeme (PortAudio)
sudo apt install portaudio19-dev   # Ubuntu/Debian
brew install portaudio              # macOS

# Installer
pip install -e .

Ajouter dans ~/.claude/settings.json :

{
  "mcpServers": {
    "voice": {
      "command": "/chemin/vers/venv/bin/claude-voice-input",
      "env": {
        "WHISPER_MODEL": "base",
        "WHISPER_DEVICE": "auto",
        "WHISPER_COMPUTE_TYPE": "int8"
      }
    }
  }
}

Configuration

Variables d'environnement

Variable Defaut Description
WHISPER_MODEL base Modele Whisper (voir tableau ci-dessous)
WHISPER_DEVICE auto cpu, cuda, ou auto
WHISPER_COMPUTE_TYPE int8 int8, float16, float32
CLAUDE_VOICE_DIR ~/.claude-voice-input Repertoire d'installation

Modeles Whisper

quadrantChart
    title Compromis vitesse vs qualite
    x-axis Lent --> Rapide
    y-axis Basse qualite --> Haute qualite
    tiny: [0.9, 0.25]
    base: [0.75, 0.45]
    small: [0.5, 0.65]
    medium: [0.3, 0.8]
    large-v3: [0.1, 0.95]
Modele RAM Vitesse Qualite Cas d'usage
tiny ~1 Go Tres rapide Correcte Tests, instructions simples
base ~1 Go Rapide Bonne Usage quotidien (recommande)
small ~2 Go Moyen Tres bonne Contexte technique
medium ~5 Go Lent Excellente Dictee longue, accents forts
large-v3 ~10 Go Tres lent Maximale Transcription de precision

Outils MCP

voice_listen

Enregistre depuis le microphone et transcrit au silence.

Parametre Type Defaut Description
language str "fr" Code langue ("fr", "en", etc.)
silence_duration float 2.0 Secondes de silence avant arret
max_duration float 120.0 Duree maximale d'enregistrement

voice_transcribe_file

Transcrit un fichier audio existant.

Parametre Type Defaut Description
file_path str Chemin du fichier (wav, mp3, m4a, etc.)
language str "fr" Code langue

Exemples d'utilisation dans Claude Code

> ecoute-moi
  [Claude appelle voice_listen, vous parlez, il recoit le texte]

> transcris le fichier ~/meeting.wav
  [Claude appelle voice_transcribe_file]

> ecoute mes instructions en anglais
  [Claude appelle voice_listen avec language="en"]

Mise a jour

Relancer le script d'installation — il fait un git pull automatiquement :

curl -fsSL https://raw.githubusercontent.com/Baseline-quebec/claude-voice-input/main/install.sh | bash

Licence

MIT — Baseline

from github.com/Baseline-quebec/claude-voice-input

Installing Claude Voice Input

This server has no published package — it is built from source. Open the repository and follow its README.

▸ github.com/Baseline-quebec/claude-voice-input

FAQ

Is Claude Voice Input MCP free?

Yes, Claude Voice Input MCP is free — one-click install via Unyly at no cost.

Does Claude Voice Input need an API key?

No, Claude Voice Input runs without API keys or environment variables.

Is Claude Voice Input hosted or self-hosted?

Self-hosted: the server runs locally on your machine via the install command above.

How do I install Claude Voice Input in Claude Desktop, Claude Code or Cursor?

Open Claude Voice Input on unyly.org, pick your client tab (Claude Desktop, Claude Code, Cursor) and press Install — the config is generated automatically, no JSON editing.

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