Looks nice, the “tree” visualization gives the UI a pretty unique look.

Why did you decide to work on this specific idea? I don’t quite see what problem this is meant to solve and for whom, which makes it a little hard to understand the app.

I hope that doesn’t come across as discouraging an interesting experiment.

The demo video focuses on how the UI works, but it might be more helpful if it showed a situation someone is in where they have a use for this. Basically, “real” people doing real recordings, not just the same person talking for a few seconds to show that the app is recording.