Hey, founder of Resemble (https://resemble.ai) here. We're building a custom voice cloning service with APIs and controllability. Shoot me a message if you want to build a voice from raw MP3s.
That's great! I'm glad to see any competition in the space. When I first tried Lyrebird a year or 18 months ago the quality wasn't great. It was OK and I could hear a resemblance to the voice it was meant to create, but there were hisses and fuzzy sections and it just wasn't long term listenable. Recently the examples I've heard from Descript have sounded really crisp. Keep on the path you're on! I like your business model better, but from the examples on your website the voices are still not quite as refined. Now what I'd really like is a local means of generating great TTS of my own voice, but that's a different offering.
Wow, this is perfect! It even has a Unity plugin. I'll certainly give Resemble a whirl.