Hi, it does split chapters with AudiowaveAI using markdown. It converts other formats to markdown and uses that.

So you can either copy and paste a markdown file there or upload it. PDF and epub would work too, but it is a bit more finky.

I'm happy to help; there are a few authors who contacted me, and I'm releasing an HD quality for authors this week, too (less static noise).

Ping me at michael@audiowaveai.com