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NCJ Number: 44206 Add to Shopping cart Find in a Library
Title: EFFECT OF DISGUISE ON 'VOICEPRINT' IDENTIFICATION (FROM SELECTED MATERIALS ON LEGAL AND TECHNICAL ASPECTS OF 'VOICEPRINT' IDENTIFICATION, 1976 - SEE NCJ-44202)
Author(s): H HOLLIEN; R E MCGLONE
Corporate Author: National College of Criminal Defense Lawyers and Public Defenders
College of Law
University of Houston
United State
Date Published: 1976
Page Count: 14
Sponsoring Agency: National College of Criminal Defense Lawyers and Public Defenders
Houston, TX 77004
National Institutes of Health
Bethesda, MD 20014
Grant Number: NS-06459
Type: Report (Study/Research)
Format: Document
Language: English
Country: United States of America
Annotation: THE SENSITIVITY OF THE VOICEPRINT METHOD OF SPEAKER IDENTIFICATION TO INTENTIONAL DISGUISING OF SPEECH IS ASSESSED IN A STUDY USING 25 MALE SPEAKERS AND 6 EXPERT VOICEPRINT INTERPRETERS.
Abstract: THE SPEAKERS AND INTERPRETERS WERE FACULTY MEMBERS AND GRADUATE STUDENTS IN THE FIELD OF PHONETICS. THE SPEAKERS RECORDED A STANDARD PASSAGE TWICE, ONCE USING NORMAL VOICES AND AGAIN USING DISGUISED VOICES. THE INTERPRETERS ATTEMPTED TO MATCH THE DISGUISED-VOICE SPECTROGRAMS WITH THE NORMAL-VOICE SPECTROGRAMS. WITH FEW EXCEPTIONS, THE INTERPRETERS WERE UNABLE TO MATCH THE TWO SETS OF SPECTROGRAMS CORRECTLY. OFTEN A GIVEN SPEAKER'S DISGUISED-VOICE SPECTROGRAM RESEMBLED ANOTHER SPEAKER'S SPECTROGRAM MORE CLOSELY THAN THE GIVEN SPEAKER'S OWN NORMAL-VOICE SPECTROGRAM. THE FINDINGS ARE TAKEN AS FURTHER EVIDENCE OF THE SHORTCOMINGS OF THE VOICEPRINT AS A SPEAKER IDENTIFICATION METHOD. IT IS SUGGESTED THAT THE VOICEPRINT TECHNIQUE NOT BE USED IN INVESTIGATIVE OR FORENSIC SITUATIONS UNTIL MORE IS KNOWN ABOUT ITS VALIDITY. RESEARCH DIRECTIONS IN SPEAKER IDENTIFICATION ARE SUGGESTED.
Index Term(s): Effectiveness; Studies; Voice identification
Note: A PAPER DELIVERED AT THE CARNAHAN CRIME COUNTER MEASURE CONFERENCE, LEXINGTON, KENTUCKY, MAY 5, 1976
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http://www.ncjrs.gov/App/publications/abstract.aspx?ID=44206

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