Phase 3 – Motion, Voice & Phrase Intelligence (Beta)

Phase 3 – Motion, Voice & Phrase Intelligence (Beta)

Timeline: Weeks 13-18 (6 weeks)
Status: Planning
Goal: Beta release with motion/voice control, phrase recommendations, and UI deck lanes

Overview

Phase 3 transforms Echelon from a core audio engine into a complete performance instrument by adding:
- Motion Control: DELL motion stream integration for gesture-based deck control
- Voice Control: Whisper-rs integration for voice commands
- Phrase Intelligence: Online phrase recommendation service with <5 ms latency
- User Interface: Deck lanes, phrase browser, automation editor, MIDI learn

This phase enables the core "motion- and voice-driven performance instrument" vision from the project plan.

Key Deliverables

1. Motion bridge connecting Episode 1 motion pipeline to Echelon scheduler
2. Voice recognizer with command parsing and feedback
3. Phrase intelligence service with FAISS-based recommendations
4. Complete UI with deck lanes, phrase browser, and automation editor
5. End-to-end integration demonstrating motion → phrase → audio flow

Success Metrics

• Motion → action latency: <50 ms
• Voice recognition accuracy: >90
• Phrase recommendation latency: <5 ms
• UI frame rate: 60 FPS
• Beta demo: 5-minute performance demonstration

See `phase-3-plan.md` for detailed week-by-week implementation plan.