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Speech recognition

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Charu Joshi

christ university

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Speech Recognition BY Charu joshi
Introduction ,[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object]
Recognition Voice Input Analog to Digital Acoustic Model Language Model Display Speech Engine Feedback
[object Object],[object Object],[object Object],[object Object]
TYPES OF VOICE RECOGNITION ,[object Object],[object Object]
TYPES OF VOICE RECOGNITION ,[object Object],[object Object]
How do humans do it? ,[object Object],[object Object],[object Object],[object Object]
How might computers do it? ,[object Object],[object Object],[object Object],Acoustic waveform Acoustic signal Speech recognition
 
DIFFERENT PROCESSES INVOLVED ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
DIFFERENT PROCESSES INVOLVED(CONTD.) ,[object Object],[object Object],[object Object]
Digitization ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Separating speech from background noise ,[object Object],[object Object],[object Object],[object Object]
EVOLUTION OF VOICE RECOGNITION Pattern Matching Interactive Voice Recognition (IVR ) Dictation Speech Integration into Applications Hands Free – Eyes Free
Process of speech recognition Speaker Recognition Speech Recognition parsing and arbitration S1 S2 SK SN
Speaker Recognition Speech Recognition parsing and arbitration Switch on Channel 9 S1 S2 SK SN
Speaker Recognition Speech Recognition parsing and arbitration Who is speaking? Annie David Cathy S1 S2 SK SN “ Authentication”
Speaker Recognition Speech Recognition parsing and arbitration What is he saying? On,Off,TV Fridge,Door S1 S2 SK SN “ Understanding”
Speaker Recognition Speech Recognition parsing and arbitration What is he talking about? Channel->TV Dim->Lamp On->TV,Lamp S1 S2 SK SN “ Switch”,”to”,”channel”,”nine” “ Inferring and execution”
Framework of Voice Recognition Face Recognition Gesture Recognition parsing and arbitration S1 S2 SK SN “ Authentication” “ Understanding” “ Inferring and execution”
Speaker Recognition ,[object Object],[object Object],[object Object],[object Object]
Generic Speaker Recognition System Preprocessing Feature Extraction Pattern Matching Preprocessing Feature Extraction Speaker Model Speech signal Analysis Frames Feature Vector Score
ADVANTAGES ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
DISADVANTAGES ,[object Object],[object Object],[object Object],[object Object],[object Object]
Future of Speech Recognition ,[object Object],[object Object],[object Object],[object Object],[object Object]

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Speech recognition

  • 1. Speech Recognition BY Charu joshi
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  • 4. Recognition Voice Input Analog to Digital Acoustic Model Language Model Display Speech Engine Feedback
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  • 14.
  • 15. EVOLUTION OF VOICE RECOGNITION Pattern Matching Interactive Voice Recognition (IVR ) Dictation Speech Integration into Applications Hands Free – Eyes Free
  • 16. Process of speech recognition Speaker Recognition Speech Recognition parsing and arbitration S1 S2 SK SN
  • 17. Speaker Recognition Speech Recognition parsing and arbitration Switch on Channel 9 S1 S2 SK SN
  • 18. Speaker Recognition Speech Recognition parsing and arbitration Who is speaking? Annie David Cathy S1 S2 SK SN “ Authentication”
  • 19. Speaker Recognition Speech Recognition parsing and arbitration What is he saying? On,Off,TV Fridge,Door S1 S2 SK SN “ Understanding”
  • 20. Speaker Recognition Speech Recognition parsing and arbitration What is he talking about? Channel->TV Dim->Lamp On->TV,Lamp S1 S2 SK SN “ Switch”,”to”,”channel”,”nine” “ Inferring and execution”
  • 21. Framework of Voice Recognition Face Recognition Gesture Recognition parsing and arbitration S1 S2 SK SN “ Authentication” “ Understanding” “ Inferring and execution”
  • 22.
  • 23. Generic Speaker Recognition System Preprocessing Feature Extraction Pattern Matching Preprocessing Feature Extraction Speaker Model Speech signal Analysis Frames Feature Vector Score
  • 24.
  • 25.
  • 26.