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SPEECH RECOGNITION

SPEECH RECOGNITION.

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SPEECH RECOGNITION

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  1. SPEECH RECOGNITION

  2. "I enjoy working with people."--HAL 9000“Open the pod bay doors, Hal."--Dave Bowman (Keir Dullea)"I'm sorry, Dave. I'm afraid I can't do that."--HAL"What's the problem?"--Dave"I think you know what the problem is just as much as I do."--HAL"What are you talking about, Hal?"--Dave"This mission is too important for me to allow you to jeopardize it."--HAL

  3. A BRIEF INTRODUCTION

  4. WHAT IS SPEECH RECOGNITION? • SPEECH • FEATURES USED IN RECOGNITION

  5. SPEECH RECOGNITION SYSTEMS CLASSIFICATION

  6. Classification continued.. Isolated Word Recognition Continuous speech Recognition

  7. Classification continued… • Speaker dependent • Speaker independent • Connected word • Conversational

  8. Basic phases of SR • Training Phase • Recognizing phase

  9. Phases

  10. How do they work? • Audio Recording/Detection • PreFiltering • Framing/Windowing • Additional filtering • Matching

  11. Applications/Uses • Dictation • Command • Telephony • Medical • Embedded systems • Car Industry • Education

  12. Contemporary Speech Recognition Software • Dragon • IBM • Keystone Speech master • Microsoft Office XP(inbuilt)

  13. FUTURE IN SPEECH RECOGNITION • Conversational recognition systems • Reduction in voice drift • Simplicity • Improved hardware design

  14. Future Applications • Computer and Video Games • Gambling • Precision Surgery • Domestic applications • Wearable computers

  15. Conclusion

  16. REFERENCES • Digital Speech Processing, Synthesis, and Recognition by Sadaoki Furui published in 1989 by Tokai University Press • Trends in Speech recognition by Wayne A .Lea . 1980 by Prentice Hall • http://www.jiscmail.ac.uk/lists/FONETIKS.html • http://www.kpn-telecom.nl/cave/ • http://cortex.itc.it/ • http://www.canberra.edu.au/pathways/papers • http://www.edc.org

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