LANGUAGE IN INDIA

Strength for Today and Bright Hope for Tomorrow

Volume 13:6 June 2013
ISSN 1930-2940

Managing Editor: M. S. Thirumalai, Ph.D.
Editors: B. Mallikarjun, Ph.D.
         Sam Mohanlal, Ph.D.
         B. A. Sharada, Ph.D.
         A. R. Fatihi, Ph.D.
         Lakhan Gusain, Ph.D.
         Jennifer Marie Bayer, Ph.D.
         S. M. Ravichandran, Ph.D.
         G. Baskaran, Ph.D.
         L. Ramamoorthy, Ph.D.
Assistant Managing Editor: Swarna Thirumalai, M.A.

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Using Exact Formant Structure of Persian Vowels as a Cue for Forensic Speaker Recognition

Mojtaba Namvar Fargi, Shahla Sharifi, Mohammad Reza Pahlavan-Nezhad,
Azam Estaji and Mehi Meshkat Aldini
Ferdowsi University of Mashhad

Abstract

Forensic phonetics is subfield of forensic linguistics in which using acoustic information and phonetic features s are investigated for completing forensic cases in which one of the existing evidences is a voice record related to the guilty. One of the most important tasks of forensic phoneticians is forensic speaker recognition. For doing this the phonetician is asked to estimate the degree of similarity between the given records of the guilt’s speech and the suspected(s) and determine that whether these two sound evidences match to each other or not.

The objectives of this study which is conducted on the sound data from 10 Persian native speakers of both sexes, is to investigate the possibility of using exact formant structure of vowels as a cue for forensic speaker recognition tasks.

The results of this study show that using vowel space and exact formant structure of vowels may be a useful means with perfect reliability in tasks related to forensic speaker recognition.

Keywords: forensic linguistics, forensic phonetics, speaker recognition, acoustic phonetics.

1. Introduction

Forensic linguistics, deals with the topics such as Forensic Language (Tiersma, 1999), Forensic Semantics (Langford, 2000: 72-94), Forensic Discourse ( Bavelas, & Gibson, 1994: 189-206), False testimony (Harris, 2001: 53-74) and forensic phonetics (Aqagolzadeh, 1391).

This is only the beginning part of the article. PLEASE CLICK HERE TO READ THE ARTICLE IN PRINTER-FRIENDLY VERSION.

Mojtaba Namvar Fargi
mojtabanamvar@gmail.com

Shahla Sharifi
sh-sharifi@um.ac.ir

Mohammad Reza Pahlavan-Nezhad
Rezapahlavan5@yahoo.com

Azam Estaji
Estajiz@yahoo.com

Mehi Meshkat Aldini

Linguistics Department
Ferdowsi University of Mashhad
PO box 91779-48974
Mashhad
Iran
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