Build Real-Time AI Avatars with Lip Sync Using Agora ConvoAI & RPM
Blog post from Agora
The guide provides a comprehensive walkthrough on creating an AI-powered 3D avatar with real-time lip synchronization and facial expressions using Agora’s ConvoAI platform, WebAudio API, and ReadyPlayer.me avatars. It explains how to analyze audio streams to map frequencies to ARKit viseme blend shapes, rendering the avatars at 60 FPS with synchronized audio-visual outputs. The process involves setting up a development environment, integrating Agora RTC for real-time voice streaming, and employing WebAudio-driven lip sync engines to animate 3D avatars, blending lip sync with facial expressions. The implementation does not rely on machine learning models but uses browser-native audio analysis for real-time 3D deformation, offering practical insights into leveraging technology for realistic avatar interactions. The guide also includes troubleshooting tips and suggestions for enhancing the project, such as adding emotion detection and optimizing for mobile performance.