The document discusses adding audio to ebooks, allowing audio to play on each page when turned to or as background for the whole book. Audio can also be added through a hyperlink or button to play in a popup window.

1. Addaudiooneachpageandplaycertainaudio
whenyouturntothepage,oraddanaudiofor
thebackgroundforyourwholebook.
Youcanalsoaddahyperlink/buttontoplayan
audioinapopupwindow.
Audio