Fully offline voice — no internet required for speech

Full Conversations Without an Internet Connection

Previous versions relied on cloud speech services. Now all voice capabilities run on-device — works perfectly with no network at all.

Offline Capabilities

• **Speech Recognition (ASR)** — Sherpa-ONNX engine, supports Chinese and English, SenseVoice-Small available as an option
• **Text-to-Speech (TTS)** — Matcha engine, faster and better sounding than the previous VITS
• **Wake Word (KWS)** — Say a keyword to wake the robot without continuous listening

Three Trigger Modes

1. **Always listening** — Best for demos and exhibitions 2. **Wake word** — For everyday use, say "hello" to start a conversation 3. **Push to talk** — Manual control, most resource-efficient

Real-World Experience

• Models auto-download to /models on first boot, then run fully offline
• Audio pre-buffering ensures the first syllable is not swallowed by VAD
• 500ms silence padding at the end prevents sentence truncation

Choose your trigger mode and ASR model in Settings.