Solution for fine facial animation in three steps
To address the pain point of raw expressions on digital characters, Rapport Cloud provides a complete audio-driven facial animation solution:
- Technical layer configuration: Enables the platform's Audio-Driven Animation feature, which is based on Speech Graphics' award-winning muscle-mapping algorithms that translate audio waveforms into 42 sets of facial muscle movement data in real-time
- Character Layer Optimization::
- When creating characters through MetaHuman or AvatarOS, make sure to bind the full facial skeletal system
- Enable the "Micro Expressions" option in the project settings to enhance subtle expression changes.
- application layer enhancement: Configure non-verbal animation parameters, including:
- Respiratory rate (0.5-1.2 Hz is the natural range)
- Blink interval (triggered every 2-4 seconds)
- Amplitude of random eye movements (within ±5 degrees)
The advanced solution can be combined with ElevenLabs' emotional speech synthesis to secondarily optimize the intensity of the expression through speech rhyming data.
This answer comes from the articleRapport Cloud: Creating and Deploying AI-Driven Digitally Animated CharactersThe































