Speaker Verification System
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The document summarizes a speaker verification system that uses voice biometrics to authenticate users. It describes the objectives, phases, features, and specifics of the system. The system extracts voice features from training samples to create feature matrices and thresholds for comparison during authentication. When a claimant speaks, features are extracted and compared to the claimed speaker's thresholds to determine if the voiceprint matches within 20% for verification. The presentation concludes with proposed enhancements to the system.
![Comparison Matrix 1 (5 * 256) Comparison Matrix 2 (5 * 256) Comparison Matrix 3 (5 * 256) Threshold Matrix [5*2] Claimant](https://image.slidesharecdn.com/FinalPresentationnew-123311696953-phpapp02/85/Speaker-Verification-System-34-320.jpg)
![Threshold Matrix [5*2] Threshold Matrix [5*2] Decision +/- 20% Verified Imposter YES NO Claimant Claimed Speaker](https://image.slidesharecdn.com/FinalPresentationnew-123311696953-phpapp02/85/Speaker-Verification-System-35-320.jpg)
Speaker Verification System
- 1. Ankush Goyal Karan Singh Prof. K. Gopalan
- 2. During the course Of this presentation…
- 4. OBJECTIVE T o design a real-time speaker verification system
- 5. SPEAKER RECOGNITION Speaker Identification Who is it? 1:N Is he really Ankush? Speaker Verification 1:1 ?? I am Ankush!
- 6. PHASES OF SYSTEM Enrollment Phase Authentication Phase
- 7. Feature Extraction Threshold Generation Feature Extraction Threshold Generation Decision Similarity Factor YES NO Enrollment Authentication
- 8. Swing Your Arm As Can High As You TEXT DEPENDENT 0 1 2 3 4 5 6 7 8 9 x 10 4 -1 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 1 Time Amplitude
- 9. Why?
- 10. Voice Ease Of Use Enhanced Security Time Efficient Trust & Confidence
- 16. SYSTEM SPECIFICS Record Training Dialogue Develop Training System Develop Threshold System Develop Decision System Implement GUI
- 17. Record Training Dialogue Develop Training System Develop Threshold System Develop Decision System Implement GUI
- 18. VOICE SAMPLE 1 VOICE SAMPLE 2 VOICE SAMPLE 3
- 19. Record Training Dialogue Develop Training System Develop Threshold System Develop Decision System Implement GUI
- 21. 15-25 ms
- 22. FRAME ZCR ENERGY1 ENERGY2 ENERGY3 ENERGY4
- 23. VOICE ZCR (1*256) ENERGY1 (1*256) ENERGY2 (1*256) ENERGY3 (1*256) ENERGY4 (1*256)
- 24. Speaker-A Euclidean Distance Euclidean Distance VOICE SAMPLE 1 VOICE SAMPLE 2 VOICE SAMPLE 3 ZCR Energy 1 Energy 2 Energy 3 Energy 4 ZCR Energy 1 Energy 2 Energy 3 Energy 4 ZCR Energy 1 Energy 2 Energy 3 Energy 4
- 25. Sample 1 & 2 Sample 2 & 3 Sample 3 & 1 Comparison Matrix 1 (5 * 256) Comparison Matrix 2 (5 * 256) Comparison Matrix 3 (5 * 256)
- 26. Record Training Dialogue Develop Training System Develop Threshold System Develop Decision System Implement GUI
- 27. Energy1 matrix Energy1 (1) Energy1 (2) Energy1 (3) Energy2 matrix Energy2 (1) Energy2 (2) Energy2 (3) ZCR matrix ZCR1 ZCR2 ZCR3
- 28. Energy4 matrix Energy4 (1) Energy4 (2) Energy4 (3) Energy3 matrix Energy3 (1) Energy3 (2) Energy3 (3)
- 29. THRESHOLD MATRIX ZCR Energy 1 Energy 2 Energy 3 Energy 4 MAX MIN
- 30. Record Training Dialogue Develop Training System Develop Threshold System Develop Decision System Implement GUI
- 31. I am Karan! Claimant Database of enrolled users Claims to be Karan System prompts claimant to record Claimant gives a speech reference
- 32. Claimant’s Speech Feature Extraction
- 33. Feature Matrix Sample 1 Feature Matrix Sample 2 Feature Matrix Sample 3 Feature Matrix Euclidean Distance Claimant Claimed Speaker
- 34. Comparison Matrix 1 (5 * 256) Comparison Matrix 2 (5 * 256) Comparison Matrix 3 (5 * 256) Threshold Matrix [5*2] Claimant
- 35. Threshold Matrix [5*2] Threshold Matrix [5*2] Decision +/- 20% Verified Imposter YES NO Claimant Claimed Speaker
- 36. Record Training Dialogue Develop Training System Develop Threshold System Develop Decision System Implement GUI
- 40. TEST PLAN
- 45. CONCLUSION Working System GUI
- 46. PROPOSED ENHANCEMENTS More Voice Features Independent System
- 47. ACKNOWLEDGEMENTS Prof. K. Gopalan Prof. Ed Pierson Prof. Don Gray Xia Huang Ankit Toshniwal Devanshu Singh Jitika Bharaj