3D Interactive AI Avatar & LMS Learning Platform

A next-generation e-learning and training environment powered by photorealistic 3D conversational avatars, real-time speech-to-speech interaction, dynamic gesture synthesis, and adaptive curriculum coaching.

Project Overview

Remote education frequently suffers from passive learner fatigue. Video-based courses experience drop-off rates exceeding 70% because students lack interactive feedback, personalized pacing, and human-like emotional engagement with the material.

To transform asynchronous learning into an immersive masterclass, I developed a real-time 3D AI Avatar tutor. Students speak directly into their microphones; the avatar listens, analyzes phonetic nuances, and responds via synchronized lip-sync and facial expressions in under 800 milliseconds.

Core Challenges & Architectural Solutions

• Ultra-Low Latency Speech Streaming: Architected a bidirectional WebRTC audio pipeline connecting Whisper speech-to-text, LLM reasoning, and ElevenLabs streaming synthesis with minimal roundtrip delays.
• Three.js Viseme & Lip-Sync Animation: Programmed blendshape facial mesh interpolations that match phonemes in real-time, accompanied by realistic head tilts and natural idle breathing movements.
• Adaptive Pedagogical Memory: Implemented conversational memory agents that track student comprehension across multiple lessons, dynamically adjusting quiz difficulty based on retention score.