Can I make an audiobook on Pressbooks?

Pressbooks is a book production tool for text files; we unfortunately do not offer any audiobook creation tools. While some digital formats support videos–most notably the Pressbooks webbook–these often serve as an interactive media supplement to the base text rather than a central focus. 

You can try Pressbooks for free on private books, and with watermarks in ebook and print exports. You're welcome to test out the platform and see if it meets your needs.