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Speaker Recognition Subcommittee

Members of the OSAC Speaker Recognition Subcommittee
Members of the Speaker Recognition Subcommittee at the July 2019 OSAC Meeting in Orlando, Florida.

Officers | Members | Standards | Discipline-Specific Baseline Documents | Research & Development Needs | Presentations

The Speaker Recognition Subcommittee focuses on standards and guidelines related to the practice of speaker recognition, voice data collection, measurement, transmission, and retrieval.


David Marks, Subcommittee Chair, Federal Bureau of Investigation

John Hansen, Ph.D., Subcommittee Vice Chair, University of Texas at Dallas

Patrick Gibbs, Subcommittee Executive Secretary, Leidos


Walter Andrews, Ph.D., Sierra Nevada Corporation

Christopher Cieri, Ph.D., Linguistic Data Consortium, University of Pennsylvania

Dana M. Delger, Innocence Project, Inc. (Legal Resource Representative)

Sandra Ferrari Disner, University of Southern California

Stephanie Domitrovich, Administrative Office of PA Courts (Legal Resource Representative)

Kevin Farrell, Ph.D., Nuance Communications

Larry Kincaid, Sandia National Laboratories 

Kenneth Marr, Federal Bureau of Investigation

Oscar Morales, United States Government

Omid Sadjadi, Ph.D., National Institute of Standards and Technology

Alice Thomas, U.S. Secret Service

William Thompson, University of California-Irvine (Human Factors Representative)

Pedro Torres-Carrasquillo, Ph.D., Massachusetts Institute of Technology, Lincoln Laboratory

Emily Whitmarsh, Defense Forensics and Biometrics Agency

Pam Zilly, Nebraska State Patrol Crime Laboratory (Quality Infrastructure Representative)

Affiliates and Task Group Participants


Tier 1: On the OSAC Registry

  • None currently.

Tier 2: Published by a SDO

  • None currently.

Tier 3: Sent to a SDO

Tier 4: Under Development

  • Validation of Forensic Speaker Recognition for the Purpose of Informing Legal Admissibility Decisions.
  • Best Practices for Forensic Human-Supervised Automatic Speaker Recognition: Pre-Processing and Relevant Population Data Selection.
  • Foundational Scientific Literature for Forensic Speaker Recognition.
  • Process Map of Recommended Practices in Forensic Speaker Recognition.
  • Assessing Mismatch Conditions for Forensic Speaker Recognition.
  • Training Guidelines for Legal Professionals Handling Speaker Recognition Cases.

Discipline-Specific Baseline Documents

The Forensic Science Standards Board (FSSB) has provided the opportunity for OSAC Subcommittees to identify baseline documents and reference materials that best reflect the current state of the practice within their respective disciplines. 

These documents contain practical information regarding these disciplines that can help forensic scientists, judges, lawyers, researchers, other interested parties and the general public, to better understand the nature, scope, and foundations of the individual disciplines as they are currently practiced.

It is important to note that the identification of these documents in this venue does not represent an endorsement by OSAC or NIST.  Only documents that are posted on the OSAC Registry constitutes OSAC endorsement. All copyrights for these documents are reserved by their owners. Subcommittee position statements or responses to data collections by the subcommittee represent the consensus opinion of the subcommittee, not necessarily the position of the entire OSAC organization or NIST.

Research & Development Needs


  • None currently.

In general, the development of standards and guidelines is transitioning from the Scientific Working Groups (SWGs) to the OSAC. Some SWGs will continue to operate to provide other resources within their discipline. The existing SWG documents will remain in effect until updated documents are disseminated by the OSAC or the SWG. SWGDAM will retain the responsibility for updating the FBI DNA Quality Assurance Standards.

– Forensic Science Standards Board: March 2015

Created July 9, 2014, Updated May 4, 2020