International Journal of Medical Toxicology & Legal Medicine
  • Year: 2023
  • Volume: 26
  • Issue: 3and4

Likelihood Ratio Estimation and Validation for Discrimination of Ten Hindi Vowels in Forensic Speaker Identification

  • Author:
  • Aarti Jamwal1, Surender Singh Sehrawat2,*, Gurleen Kaur3, Rajesh Verma4
  • Total Page Count: 3
  • Page Number: 179 to 181

1M.Sc. Forensic Science and Toxicology, Department of Forensic Science, Chandigarh University, Mohali, Punjab

2PhD Scholar, Department of Cardio-thoracic and Vascular Surgery, PGIMER, Chandigarh

3Assistant Professor, Department of Forensic Science, RIMT University, Mandi Gobindgarh, Punjab

4Deputy Director, Regional Forensic Science Laboratory, Mandi, Himachal Pradesh

*Corresponding Author, Dr. Surender Singh Sehrawat, PhD Scholar, Department of Cardio-thoracic and Vascular Surgery, PGIMER, Chandigarh, Email: surendersehrawat6@gmail.com

Online Published on 12 January, 2024.

Abstract

The forensic voice comparison process is undergoing a paradigm shift in terms of the evaluation of the evidence. The traditional “match” or “no match” approach is being replaced by the likelihood ratio based approach. The new approach has been incorporated in the best practices manuals of many European & American forensic organizations. But this approach has not seen much development in many of the Asian Countries including India. Technical speaker recognition now involves the acoustics-phonetic approach (semi-automatic) and the automatic approach. The present study has been undertaken to assess the variability of the Hindi vowels that helps in the text independent voice comparison.

Keywords

Forensic, Speaker identification, Vowels, Log likelihood ratio cost approach, Formants