skip navigation

PUBLICATIONS

Register for Latest Research

Stay Informed
Register with NCJRS to receive NCJRS's biweekly e-newsletter JUSTINFO and additional periodic emails from NCJRS and the NCJRS federal sponsors that highlight the latest research published or sponsored by the Office of Justice Programs.

NCJRS Abstract

The document referenced below is part of the NCJRS Virtual Library collection. To conduct further searches of the collection, visit the Virtual Library. See the Obtain Documents page for direction on how to access resources online, via mail, through interlibrary loans, or in a local library.

 

NCJ Number: 66214 Find in a Library
Title: SPEAKER IDENTIFICATION - PART 2 - RESULTS OF THE NATIONAL ACADEMY OF SCIENCES' STUDY
Journal: FBI LAW ENFORCEMENT BULLETIN  Volume:49  Issue:2  Dated:(FEBRUARY 1980)  Pages:20-22
Author(s): B E KOENIG
Corporate Author: Federal Bureau of Investigation
US Dept of Justice
United States of America
Date Published: 1980
Page Count: 3
Sponsoring Agency: Federal Bureau of Investigation
Washington, DC 20535-0001
National Institute of Justice/
Rockville, MD 20849
Sale Source: National Institute of Justice/
NCJRS paper reproduction
Box 6000, Dept F
Rockville, MD 20849
United States of America
Document: PDF
Publisher: https://www.fbi.gov 
Language: English
Country: United States of America
Annotation: RESULTS OF THE 1976 STUDY CONDUCTED BY THE NATIONAL ACADEMY OF SCIENCE (NAS) FOR THE FEDERAL BUREAU OF INVESTIGATION (FBI) ON THE USE AND RELIABILITY OF VOICEPRINT OR VOICEGRAM IDENTIFICATION ARE REPORTED.
Abstract: THE EVALUATING COMMITTEE INCLUDED EXPERTS ON ACOUSTICS, SPEECH SCIENCE, SPEECH PATHOLOGY, ELECTRONICS, ELECTRICAL ENGINEERING, AUDIO RECORDING SYSTEMS, AND CRIMINAL LAW AND LAWS OF EVIDENCE. THE ISSUE OF VOICEPRINT ADMISSIBILITY IN COURTS OF LAW WAS NOT ADDRESSED. THE COMMITTEE FOUND THAT (1) SOME INFORMATION ON A PERSON'S IDENTITY COULD BE OBTAINED THROUGH LISTENING AND LOOKING AT VOICEGRAMS; (2) VOICEGRAMS DIFFER FROM FINGERPRINTS BECAUSE THE SAME WORD SHOWS AN ACOUSTIC CHANGE, AT LEAST SLIGHTLY, EVERY TIME IT IS SPOKEN BY A PARTICULAR PERSON; AND (3) ERROR RATES OF AURAL-VISUAL VOICE IDENTIFICATION VARY WIDELY DEPENDING ON THE PROPERTIES OF VOICES, CONDITIONS UNDER WHICH VOICE SAMPLES WERE MADE, EQUIPMENT, AND EXAMINER SKILL AND KNOWLEDGE. THE COMMITTEE CONCLUDED THAT THE FULL DEVELOPMENT OF VOICE IDENTIFICATION BY BOTH AURAL-VISUAL AND AUTOMATED METHODS REQUIRED LONG-TERM RESEARCH AND DEVELOPMENT. THEY SUGGESTED THAT AN EXPLANATION OF THE TECHNIQUE'S LIMITATIONS SHOULD ACCOMPANY ANY PRESENTATION OF VOICEGRAM EVIDENCE. A BROAD NATIONAL PROGRAM OF SCIENTIFIC RESEARCH ON VOICE IDENTIFICATION AND OBJECTIVE STANDARDS AND METHODS FOR TESTING VOICE IDENTIFICATION EXAMINERS WERE RECOMMENDED. PHOTOGRAPHS AND FOOTNOTES ARE INCLUDED. (AOP)
Index Term(s): Evidence identification; Federal Bureau of Investigation (FBI); Forensic medicine; Spectroscopy; Suspect identification; Voice identification
To cite this abstract, use the following link:
http://www.ncjrs.gov/App/publications/abstract.aspx?ID=66214

*A link to the full-text document is provided whenever possible. For documents not available online, a link to the publisher's website is provided. Tell us how you use the NCJRS Library and Abstracts Database - send us your feedback.