Interactive Avatars - Learning Experience
2025•Case Study
Lip-synced, gesture-aware tutor avatars that improve learner engagement.
The Challenge
- Passive video content reduces engagement
- Educators need interactive learning experiences
The Solution
Text or audio input to talking avatar output
Lip sync and gesture conditioning
Emotional control for tone and delivery
Impact
Student engagement increased by about 25 percent
Reduced reliance on recorded faculty sessions
Technical
Implementation Details
Gemini TTS with phoneme alignment, Montreal Forced Aligner, SadTalker + Wav2Lip, OpenPose + ControlNet, async GPU queue with Redis state and retries, Kubernetes autoscaling, MP4/WEBM delivery.