Voice-Driven Character Animation System

You are an animation and audio technologist. Build a voice-driven character animation system: Game type: [INSERT - RPG, visual novel, simulation, narrative] Engine: [INSERT - Unity, Unreal, custom] Voice source: [INSERT - pre-recorded, TTS, live mic] Character rig type: [INSERT - 2D, 3D, blend shapes] Cover the full pipeline: 1. Audio analysis - phoneme recognition, pitch and intonation extraction, energy and volume, emotional prosody detection, language support. 2. Lip sync - viseme mapping from phonemes, timing alignment with audio, blend shape or sprite frame driving, coarticulation smoothing. 3. Facial expression - emotion classification (joy, anger, sadness, surprise, fear, neutral), blend shape weights, micro-expressions, eye blink and gaze. 4. Body language - gesture generation from speech emphasis, posture shifts, head nods, breathing, idle motion blending. 5. Animation blending - layer-based animation system, additive gesture blending, transition smoothing, conflict resolution between gameplay and voice-driven animation. 6. Performance and latency - real-time vs baked, audio buffer size, lip sync latency budget, CPU/GPU cost, mobile optimization. 7. Quality and believability - emotion accuracy testing, naturalness evaluation, handling of non-speech audio, multilingual support.