Tobi is a free, open source, multimedia book production authoring tool for creating human narrated talking books synchronized with text and images conforming to the DAISY 3 and EPUB 3 standards—fully accessible, navigable, and feature-rich.
Obi is an open source audio book production tool that produces digital talking books (DTBs) conforming to DAISY 3 (ANSI/NISO Z39.86), DAISY 2.02 and Accessible EPUB 3 standards. It is easy to learn, highly accessible, and powerful navigable audio book production tool that enables anybody to produce accessible and rich content with minimal amount of training.