@Damarmau Hi! You are correct, by itself it's a very nice set of animations, but to talk with the AI you indeed need Voxta Server (there were some improvements recently to make it easier to understand what's what, we're trying to adjust and improve the display and messages to allow free scenes that use Voxta without creating confusion).
This scene was made to be as simple as possible rather than making it do too many things; you can talk to the AI, you can ask her a few basic things like raising her arms and things like that, but the core of it is high quality speech animations
About the mic, I usually can't use a mic myself (can't really talk out loud because of reasons!), you can connect to the chat using the Voxta UI and see the chat view on another screen and type. It's not very practical for VR though!
If you have
any questions please reach out. I think Voxta can be
amazing for story telling and scenarios, but because it's a
creator tool rather than "just a chat" like most programs you'll find out there, it's harder to explain right and we need more good examples, which we're slowly getting into. So if you have any interest in what's possible, check out our YouTube channel, look at the other Voxta scenes, and I'll do my best to answer anything that's missing (and/or improve our documentation).