04-10-2016, 03:34 PM
1457704000-PPTVoiceBrowserCopy.ppt (Size: 2.49 MB / Downloads: 8)
A voice browser is a device :
that interprets voice input and interprets voice markup languages to generate voice output.
that interprets a script which specifies exactly what to verbally present to the user as well as when to present each piece of information.
Benefits:
Benefits Voice is a very natural user interface which speeds up browsing. Less space requirements. Portable voice browsers can also be implemented. Practical interface for functionally blind users. Users can browse web while keeping there hands and eyes for other jobs
Motivation
Easy to use - for people with no knowledge or fear of computers.
Voice interaction can escape the physical limitations on keypads and displays as mobile devices become ever smaller.
Differences Between Graphical & Voice Browsing
Graphical browsing is more passive due to the persistence of the visual information
Voice browsing is more active since the user has to issue commands.
Graphical Browsers are client-based, where as Voice Browsers are server-based.
Web Browsing:
Web Browsing Browse any web pages using speech input. Parsing for the purpose of voice recognition done when the page is accessed. May or may not produce a voice feed back.
W3C develops interoperable technologies (specifications, guidelines, softwares and tools) to lead the Web to its full potential as a forum for information, commerce, communication, and collective understanding.
Speech Synthesis
The specification defines a markup language for prompting users via a combination of prerecorded speech, synthetic speech and music. You can select voice characteristics (name, gender and age) and the speed, volume, pitch, and emphasis. There is also provision for overriding the synthesis engine's default pronunciation
Pronunciation Lexicon
Application developers sometimes need to ability to tune speech engines, whether for synthesis or identification.
W3C is developing a markup language for an open portable specification of pronunciation information using a standard phonetic alphabet.
The most commonly needed pronunciations are for proper nouns such as surnames or business names.