Conversion of epub files to mp4 file format

epub to mp4 conversion is in most cases related to attempt to convert digital book to audio book, i.e. conversion of ePUB ebooks to MP3 audio. The most reliably way to do this, would be to use some text-to-speech converter, such as Balabolka, that will generate audio file (.mp3) from text source (.epub). Usually uses the voices provided by Microsoft, but some programs have their own unique ones.

Open EPUB file    Open MP4 file