"Three fundamental principles guide our approach to the future of communication on Roblox. First, communication capabilities must be rooted in the ways we communicate in the real world, especially when in an immersive 3D experience. For example, we raise our voice to reach someone far away, we whisper when we wish to be discreet, we alter our communication style depending on if we are alone or with others, and we use gestures and facial expressions to add nuance and emotion to our words. "

A quote from the blog post.

A demo video about how it will work: https://peertube.tv/videos/embed/59b3d41e-b8ba-4024-a240-82589e59b77f