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VoiceXML
VoiceXML
VoiceXML
VoiceXML
VoiceXML
VoiceXML
VoiceXML
VoiceXML
VoiceXML
VoiceXML
VoiceXML
VoiceXML
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VoiceXML

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  • 1. VoiceXML A Presentation By : Abbas Hashmi
  • 2. VoiceXML
    • Voice Extensible Markup Language is designed for creating audio dialogs that feature synthesized speech, digitized audio, recognition of spoken and DTMF key input, recording of spoken input, telephony, and mixed initiative conversations.
  • 3. Previously used voice appl.
    • IVR(Interactive Voice Responce) Application
      • A special purpose computer outfitted with telephony hardware
    • Pre-VoiceXML dialogue engines
      • Non-programmable
  • 4. Architectural Model
  • 5. Enabled Technologies
    • Automatic Speech Recognition (ASR)
    • Text-To-Speech (TTS)
    • Enterprise Software integration Technology
  • 6. Example
    • <?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot;?>
    • <vxml xmlns=“url&quot; xmlns:xsi=“url“ xsi:schemaLocation=“url&quot; version=&quot;2.0&quot;>
    • <form>
    • <field name=&quot;drink&quot;>
    • <prompt>Would you like coffee, tea, milk, or nothing?
    • </prompt>
    • <grammar src=&quot;drink.grxml&quot; type=&quot;application/srgs+xml&quot;/>
    • </field>
    • <block>
    • <submit next=“url&quot;/>
    • </block>
    • </form>
    • </vxml>
  • 7. ADVANTAGES
    • VoiceXML is a markup language that:
    • Minimizes client/server interactions by specifying multiple interactions per document.
    • Shields application authors from low-level, and platform - specific details.
    • Separates user interaction code (in VoiceXML) from service logic (e.g. CGI scripts).
    • Promotes service portability across implementation platforms. VoiceXML is a common language for content providers, tool providers, and platform providers.
    • Is easy to use for simple interactions, and yet provides language features to support complex dialogs.
  • 8. DISADVANTAGES
    • No special analysis of speech input
      • Not suitable for training speech skills—Reading, ESL, singing, etc.
    • VUI conversational bandwidth is slower than GUI conversational bandwidth
      • Using a VUI is like drinking from Lake Superior with a straw
  • 9. Applications
    • Many commercial VoiceXML applications have been deployed, processing millions of telephone calls per day. Few are
      • order inquiry
      • package tracking
      • driving directions
      • emergency notification
      • voice access to email
      • customer relationship management
  • 10. Conclusion
    • Reduce the digital devide
    • VoiceXML is an exciting new standard with support from the largest companies in the computing and telecommunications industries
    • VoiceXML has been proposed as a standard language to develop Internet speech applications.
    • Besides, the distributed architecture of VoiceXML documents makes speech applications possible to be shared in the Internet
  • 11. Thank You!
  • 12. ? any ques.

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