AI Avatar — Real-Time 3D Talking AI Companion with Voice and Emotion | Next.js + Three.js Final Year Project with Source Code
A real-time 3D anime avatar that listens to your voice, reads your emotion, and talks back with a natural female voice and live lip-sync. Built with Next.js, Three.js, and Groq. A standout AI final year project with full source code.
Technology Used
Next.js 16 | React | Three.js | @pixiv/three-vrm | Groq LLaMA 3.3 70B | Groq Whisper large-v3 | Microsoft Edge Neural TTS | Web Audio API | Voice Activity Detection | Tailwind CSS | JavaScript
AI Avatar — Talk to a 3D AI That Actually Listens and Feels
Most chatbot projects end at a text box. This one puts a living 3D character on the screen. AI Avatar is a real-time conversational AI web app where an anime-style 3D avatar hears you speak, figures out the emotion behind your words, and replies out loud with a natural female voice and real lip-sync. It feels closer to a video call than a chat window, which is exactly why it stands out as a final year project in an AI/ML or computer science batch full of repeat ideas.
What Makes This Project Different
The avatar uses a VRM 1.0 model rendered with Three.js, so it blinks, breathes, follows your cursor, and changes hand gestures while it speaks. Voice is always on: a Voice Activity Detection layer picks up your speech automatically, so there is no button to press. Behind the scenes, Groq Whisper turns your voice into text, Groq's LLaMA model generates an emotionally aware reply, and Microsoft Edge Neural TTS speaks it back with the mouth synced to the actual audio. The result is a project that examiners remember.
Key Features
- 3D VRM avatar with 360 degree orbit, zoom, idle blinking, breathing and micro head movements.
- Emotional expressions such as happy, sad, surprised, angry and relaxed, driven by the conversation.
- Always-on voice using Voice Activity Detection, so the avatar starts listening on its own.
- Real female voice with Microsoft Edge Neural TTS and live lip-sync powered by the Web Audio API.
- Emotional intelligence that mirrors your mood first, then gently guides you toward a calmer state.
- Emotional memory that remembers your emotional context across sessions.
- Multi-language support for English, Hindi and Hinglish, with the language locked at session start.
- Video-call feel with a webcam picture-in-picture in the corner and no chat bubbles.
Real-World Applications
- Mental wellness and companionship apps that need a friendly, emotion-aware face.
- Virtual receptionists, tutors and customer support agents that talk instead of type.
- Language learning partners that respond by voice in English, Hindi or Hinglish.
- Accessibility tools for users who prefer speaking over typing.
- Interactive kiosks, museum guides and brand mascots that hold a real conversation.
Who This Project Is For
This suits BE, BTech, MCA, BCA and MSc students who want an AI project that looks and behaves differently from the usual prediction or chatbot submissions. The stack is modern and the codebase is clean, so it also doubles as a strong portfolio piece for placements. If you want a walkthrough of how every part connects, you can add our project setup and source code explanation service and we will run you through it line by line before your viva.
What You Get
The package includes the full working source code, setup instructions, and a college-format project report. If your guide also wants a research paper, we can help you draft and publish a research paper based on this work. Prefer something in a different domain? Browse related AI builds like our MindMate AI mental health companion or the RecipeGen AI recipe generator.
Buy AI Avatar today and walk into your review with a project that talks back.
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Custom Documents (College-Tailored)
- Custom Project Report: ₹1,500
- Custom Research Paper: ₹1,000
- Custom PPT: ₹800
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