NSA SIDtoday: VoiceMatch: A New Offering at NCS

Aug. 15 2018 — 6:02p.m.


DYNAMIC PAGE -- HIGHEST POSSIBLE CLASSIFICATION IS TOP SECRET // SI / TK // REL TO USA AUS CAN GBR NZL (C) VoiceMatch: A New Offering at NCS FROM: Adolf Cusmariu Technical Director, Operational Technologies (S202B11) Run Date: 07/18/2006 (S//SI) Several articles this year introduced voice-matching analyses based on powerful technology recently obtained from MIT/Lincoln Laboratories; the analyses involved the voices of Bin Laden, Al-Zawahiri, Zarqawi, and other lesser-known or suspected terrorists. (See one of the earlier articles .) (C) Due to language analyst interest, the National Cryptologic School has approved a formal short course (four hours) on practical use of MIT's tools; the designator is TOOL 2019. The course will be taught by the author, and will be based on a tutorial found at: tutormit.html (C) The course will be self-contained and will include some basics of the speech signal to make the technology more intuitive. Topics will include: 1. The Speech Signal 2. The WaveSurfer editing and playback tool 3. The MIT voice-matching approach 4. The Speaker Comparison Algorithm (SCA) tool 5. Model building in the Trainer 6. The Speaker Watchlist Tool (SWT) 7. Language-independent features 8. Error sources 9. Tricks-of-the-trade Students will have MIT's tools loaded on their desktop PC's at the NCS, together with a voice database for comparison and testing. An atmosphere of experimentation and discovery will be fostered. (C) In order to give us a better idea how many plan to sign up for this course, please contact either the author ( ) or the NCS's ( ) and let us know of your interest. "(U//FOUO) SIDtoday articles may not be republished or reposted outside NSANet without the consent of S0121 (DL sid_comms)." DYNAMIC PAGE -- HIGHEST POSSIBLE CLASSIFICATION IS TOP SECRET // SI / TK // REL TO USA AUS CAN GBR NZL DERIVED FROM: NSA/CSSM 1-52, DATED 08 JAN 2007 DECLASSIFY ON: 20320108

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