A New Innovation

1. Presented By
CH.BINDU BHARGAVI
I.V.S SIRISHA
III CSE
ISTS ENGEENERING COLLEGE

2. • Abstract
• Introduction
• Key technologies
• System Design
• components
• Applications
• Advantages
• Future Scope
• Conclusion

3.  Voice browser is a new way of interacting with modern
computer systems. This is an alternative to the traditional text
based web browsers.
 Voice browser makes use of speech recognition technology, to
understand what the user is saying. Voice browser gives
response aurally. This is done by converting the text messages
stored in the computer to voice messages.

4.  A voice browser is a device which interprets a (voice) markup
language and is capable of generating voice output and/or interpreting
voice input and possibly other input/output modalities.
 The information that the system uses is dynamic and comes
somewhere from an end-user’s perspective, the Moto is to provide a
service similar to what graphical browsers of HTML and related
technologies do today, but on devices that are note equipped with
full-browsers or even the screens to support them.

5. • Speech Recognition
•Speech Synthesis

6. Speech Recognition
• Voice input VoXML file Text
Speech Synthesis
• Text  VoXML file  Output(Prerecorded)

7.  VoiceXML is a dialog markup language designed for
telephony applications, where users are restricted to voice
and DTMF (touch tone) input.
text.html
text.vxml
Web
Server
Internet
Browse
r

9. DTMF
Grammars
Speech
Grammars
Stochastic
Language
Models
Semantic
Interpretation
Touch Tone
USER
Speech

10.  Speech grammars allow authors to specify the rules for
covering the sequence of words that users are expected to say
in particular context.
 These contextual clues allow the recognition engine to focus
on likely utterances , improving the chances of the correct
match
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11.  Speech grammar is un useful in case of open- ended prompt
e.g. how can I help you
 The solution is to use a stochastic language models. such
models specify the probability that one word occurs following
certain others. the probabilities are computed from the
collection of utterances collected from many users.
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12. 12
• Touch tone input is often used as an alternative to speech
recognition.
• Especially useful in noisy conditions or when the social
context makes it awkward to speak.
• The W3C DTMF grammar format allows authors to specify
the expected sequence of digits, and to bind them to the
appropriate results

13. • The recognition process matches an utterance to a speech
grammar, building a parse tree as a byproduct.
• There are two approaches to harvesting semantic rules from
the parse tree :
1. Automating grammar rules with semantic interpretation
tags
2. Representing the results in XML
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14. • Fine-grained control of speech (signal processing ) resources
and telephony resources in a VoiceXML telephony platform.
• Will enable application developers to use markup to perform
call screening, whisper call waiting call transfer, and more.
• Can be used to transfer a user from on voice browser to
another on a completely different machine.
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15.  It can be divided into three categories :
◦ Web Browsing
◦ Limited information Access
◦ Spoken Dialog Systems
◦ Cinema and theater booking services
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16. •Voice browsing will become visual(Multi-modal)
•Can be integrated to an OS
•Integrated to every application.
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17. • Browser technology is changing very fast these days and we
are moving from the visual paradigm to the voice paradigm.
• Voice browser is the technology to enter this paradigm.
• Voice browser is a device which interpret voice input and
generate voice output.
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