DAISY

Digital Accessible Information System (DAISY), also known as ANSI/NISO Z39.86-2005 (R2012), is a digital talking book standard which offers a flexible and navigable reading experience for people who are blind or print disabled, offering a significantly enhanced reading experience—one that is much closer to that of the sighted reader using a print book. A Digital Talking Book (DTB) is a collection of electronic files arranged to present information to the target population via alternative media, namely, human or synthetic speech, refreshable Braille, or visual display, e.g., large print. DAISY multimedia can be a book, magazine, newspaper, journal, computerised text, or a synchronised presentation of text and audio. It provides up to six embedded "navigation levels" for content, including embedded objects such as images, graphics, and MathML. In the DAISY standard, navigation is enabled within a sequential and hierarchical structure consisting of (marked-up) text synchronised with audio.