Your Voice is Your Password
Vocea fiecărei persoane este unică. Voice biometrics folosește această unicitate pentru autentificare sigură și convenabilă.
How Voice Biometrics Works
🎤
Capture
Audio captat în timpul conversației normale
📊
Extract
Extragere caracteristici vocale unice
🔍
Compare
Comparare cu voiceprint-ul stored
✅
Verify
Decizie accept/reject
Verification Types
Text-Dependent
Utilizatorul spune o frază specifică pentru verificare.
"My voice is my password"
- ✓ Higher accuracy
- ✓ Faster enrollment
- ✗ Passphrase required
Text-Independent
Verificare din conversație naturală, fără frază specifică.
"...orice spune utilizatorul..."
- ✓ Seamless UX
- ✓ Continuous verification
- ✓ Passive authentication
Voice Features Analyzed
Physiological
- • Vocal tract shape
- • Nasal cavity resonance
- • Vocal cord characteristics
- • Throat dimensions
Behavioral
- • Speech patterns
- • Pronunciation style
- • Speaking rhythm
- • Accent characteristics
Spectral
- • MFCC coefficients
- • Pitch contours
- • Formant frequencies
- • Harmonic structure
Enrollment Process
1
Initial Enrollment
20-30 secunde de speech pentru creare voiceprint
2
Quality Check
Verificare calitate audio și diversitate foneme
3
Voiceprint Generation
Creare model biometric (d-vector sau x-vector)
4
Secure Storage
Voiceprint encrypted, separate from PII
Anti-Spoofing Protection
Attack Types
- • Replay attacks (recorded voice)
- • Voice synthesis (deepfake)
- • Voice conversion
- • Text-to-speech impersonation
Countermeasures
- • Liveness detection
- • Channel analysis
- • Replay detection algorithms
- • Deepfake detection models
Performance Metrics
99.6%
True Accept Rate
0.1%
False Accept Rate
1.2s
Verification Time
97%
Spoof Detection