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Description:
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With the wide -spread adoption of hypermedia systems and the World Wide Web (WWW ) in particular , these systems have evolved from simple systems with only textual content to those that incorporate a large content base , which consists of a wide variety of document types . Also , with the increase in the number of users , there has grown a need for these systems to be accessible to a wider range of users . Consequently , the growth of the systems along with the number and variety of users require new presentation and navigation mechanisms for a wider audience . One of the new presentation methods is the audio -only presentation of hypertext content and this research proposes a novel solution to this problem for complex and dynamic systems . The hypothesis is that the proposed Audio Browser is an efficient tool for presenting hypertext in audio format , which will prove to be useful for several applications including browsers for visually -impaired and remote users . The Audio Browser provides audio -only browsing of contents in a Petri -based hypertext system called Context -Aware Trellis (caT ) . It uses a combination of synthesized speech and pre -recorded speech to allow its user to listen to contents of documents , follow links , and get information about the navigation process . It also has mechanisms for navigating within documents in order to allow users to view contents more quickly . |