Sound Evidence

 George Papcun, Ph.D.

Forensic analysis  Expert testimony  Research

Sounds

Recording enhancement

Altered recordings 

Speaker identification

Voice memory

Voice lineups

Voice stress analysis

Voice morphing & 9/11

Contact Dr. Papcun via email

Telephone: 505.986.9636

Dr. Papcun is a scientist who analyzes the sounds of speech and language, including their environments and how they are produced, transmited and perceived.  Dr. Papcun has served as an expert witness and has completed projects for the Central Intelligence Agency, the National Security Agency and the Secret Service. He seeks other challenging assignments.

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.