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Voice Biometry standard proposal

Voice Biometry standard proposal. Honza Černocký Brno University of Technology, BUT S peech@FIT, Czech Republic Sep 8 th 2015, Interspeech VBS meeting. Program. Honza Cernocky – intro, “why?” Ondrej Glembek – Technical description Petr Schwarz – Phonexia remarks Discussion

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Voice Biometry standard proposal

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  1. Voice Biometry standard proposal Honza Černocký Brno University of Technology, BUT Speech@FIT, Czech Republic Sep 8th 2015, Interspeech VBS meeting

  2. Program Honza Cernocky – intro, “why?” Ondrej Glembek – Technical description Petr Schwarz – Phonexia remarks Discussion Honza Cernocky – next steps End 16.00, no buffet, drinks, entertainment  BUT Speech@FIT Honza Cernocky 05/2015

  3. Situation • In the last 10 years, scientific advances in speaker recognition (JFA, iVectors, PLDA) allowed for producing precise and robust SRE systems • Quickly adopted by vendors, producing solutions that are successful on the market. • R&D never stopping • Everyone continuously improving performance of their system, robustness, calibration, etc • New versions of engines released A vibrant community working in cooperative/competitive mode both for R&D labs and vendors. BUT Speech@FIT Honza Cernocky 05/2015

  4. It works  PepiVec Score, hard decision … CocaiVec CocaiVec CocaiVec PepiVec PepiVec PepiVec SID CocaiVec Score, hard decision … SID BUT Speech@FIT Honza Cernocky 05/2015

  5. It does not work  PepiVec CocaiVec CocaiVec CocaiVec SID MISMATCH SID BUT Speech@FIT Honza Cernocky 05/2015

  6. Making it work CocaiVec CocaiVec CocaiVec CocaiVec Score, hard decision … SID BUT Speech@FIT Honza Cernocky 05/2015

  7. Making it really work – standardized iVectors VBSiVec VBSiVec VBSiVec VBSiVec SID Score, hard decision … SID BUT Speech@FIT Honza Cernocky 05/2015

  8. Making it really work – standardized iVectors VBSiVec Score, hard decision … VBSiVec VBSiVec VBSiVec SID SID BUT Speech@FIT Honza Cernocky 05/2015

  9. Making it really work – standardized iVectors VBSiVec VBSiVec VBSiVec VBSiVec SID Score, hard decision … SID BUT Speech@FIT Honza Cernocky 05/2015

  10. The main thing SPEAKER IDENTITY AND CONTENT SPEAKER IDENTITY NO CONTENT I-VECTOR EXTRACTION (VENDOR 1) i-vector AUDIO 1 COMPARISON SCORE I-VECTOR EXTRACTION (VENDOR 2) AUDIO 2 i-vector BUT Speech@FIT Honza Cernocky 05/2015

  11. What is needed • Fix the core iVector extraction algorithms • Fix the necessary parameters • Do the necessary minimum, let people freedom to use their (own, best) VAD and scoring. • Do it well for the core condition – telephone, not trying to address everything. BUT Speech@FIT Honza Cernocky 05/2015

  12. We WANT • Users • Having interoperable systems • Being able to exchange speaker information without compromising content • within companies/agencies, across companies/agencies and across borders • Vendors • Increasing the whole market (think about introduction of USB!) • R&D labs • sharing iVectors between labs without lengthy discussions on configuration (not excluded though!) • Giving a working recipe to juniors to play with. • Obtaining massive data from the users BUT Speech@FIT Honza Cernocky 05/2015

  13. We DON’T WANT • stop R&D (both academic and commercial) of speaker recognition technology by saying that this will be the only iVector extraction scheme forever. • all of us are trying to push the field further, sometimes as collaborators, sometimes as competitors. • We want to define a snap-shot of the best practice up to day on which we could agree. • Earn money on licenses or patents – the proposed standard is license and patent-free • Have something too complex and too relying on a proprietary and/or 3rd party technology. • Present this as an ultimate forensic solution. BUT Speech@FIT Honza Cernocky 05/2015

  14. What is there • http://voicebiometry.org/- technical description, Python code with all necessary parameters (feature extraction, UBM, T-matrix) • Google group http://groups.google.com/d/forum/voice-biometry-standard - please subscribe BUT Speech@FIT Honza Cernocky 05/2015

  15. Program Honza Cernocky – intro, “why?” Ondrej Glembek – Technical description Petr Schwarz – Phonexia remarks Discussion Honza Cernocky – next steps End 16.00, no buffet, drinks, entertainment  BUT Speech@FIT Honza Cernocky 05/2015

  16. Program Honza Cernocky – intro, “why?” Ondrej Glembek – Technical description Petr Schwarz – Phonexia remarks Discussion Honza Cernocky – next steps End 16.00, no buffet, drinks, entertainment  BUT Speech@FIT Honza Cernocky 05/2015

  17. Next steps • If interested, sign-up to the google-group: • http://groups.google.com/d/forum/voice-biometry-standard (no more personal emails). • take the code and test it on your data • Report anything that you'd like to improve. • Please bug-fixes, not complete changes … • To the g-group or personally to Ondraglembek@fit.vutbr.cz • Tell us if we can add your lab/company as supporter on the web-page. • Please attach a logo in reasonable resolution and a web-link. • You might need to consult your management. • Vendors: implement it to your systems BUT Speech@FIT Honza Cernocky 05/2015

  18. Ext steps II. • The real normalization (ISO/IEC, NIST, W3C …) • Yes, but only if it has wide industrial and academic support. • Will need help … BUT Speech@FIT Honza Cernocky 05/2015

  19. Thank you for your attention ! http://voicebiometry.org/ BUT Speech@FIT Honza Cernocky 05/2015

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