Sound Evidence

 George Papcun, Ph.D.

Forensic analysis  Expert testimony  Research

  • Home
  • Sounds
  • Recording enhancement
  • Altered recordings
  • Speaker identification
  • Voice memory
  • Voice lineups
  • Voice stress analysis
  • Voice morphing & 9/11
  • Communications of the Miracle on the Hudson

    Telephone: 505.986.9636

    Contact Dr. Papcun via email

  • Dr. Papcun is a scientist who analyzes speech and language, especially with regard to their forensic implications. He has been employed by Los Alamos National Laboratory, the Aerospace Corporation and the University of California Phonetics Laboratory. He has served as an expert witness in the United States, Canada and Australia. He has completed projects for the Central Intelligence Agency, the National Security Agency and the United States Secret Service. He has held security clearances at Secret, Top Secret and Q levels. He will consider challenging assignments.

    Dr. Papcun's expertise includes analysis of recordings, enhancing the intelligibility of recordings, determining whether recordings have been altered, speaker identification, memory for voices, voice lineups, using voice to determine speaker veracity and voice morphing. He has done a special study of the communications of Flight 1549 that landed in the Hudson River.

    Forensic Analyses Include:
    Rodney King v. City of Los Angeles (for Mr. King)
    "Elvis" recording (appearance on Good Morning America)
    Alaska v. Exxon [Valdez] (for Exxon)
    California v. O. J. Simpson (for Associated Press)
    Daniel v. Kelly Oil (for Kelly Oil)
    Homicide of Jon Benet Ramsey (for  City of Boulder, CO)
    Paula Abdul recording (for Ms. Abdul)
    Queen v. Kashani-Malaki (Australia, for Kashani)
    California v. Wm. and Emily Harris (Patty Hearst kidnapping)
    48 Hours Mystery: The Mortgage and the Murder (CBS News)

    Awards:
    Johns Hopkins Award for Computing to Aid Persons with Disabilities
    R&D-100 Award for Technological Innovation
    National Defense Education Fellowship
    Ford Foundation Fellowship

    Author and Instructor:
    "Voice Input/Output for Computers" Taught scientists, and engineers for companies and governmental agencies in the United States and abroad including IBM, Bell Laboratories, The United States Department of State, The United States National Bureau of Standards, Danish National Telecom, Phillips, Siemens and others.

    Other Employment:
    In addition to consulting assignments, Dr. Papcun has been employed by the UCLA Phonetics Laboratory, Aerospace Corporation and Los Alamos National Laboratory.

     

     

    Inferred articulatory positions for teaching hearing impaired students, and for enhanced speech technology

    Dr. Papcun's Report on the Rodney King trial appears in the book "Letters of the Century" (Read the letter) by Grunwald and Adler

     

     

    "Your appearance as the final witness in the Rodney King trial was decisive as to the outcome."---Milton Grimes, Esq.

    "Dr. Papcun is a star!"---Attorney subsequent to Dr. Papcun's deposition, following which the opposition declined to proceed

    "Please send your bill in before you find out how delighted the client is." --Attorney following a directed verdict subsequent to Dr. Papcun's testimony