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Conference Paper

On the Relevance of F0, Jitter, Shimmer and HNR Acoustic Parameters in Forensic Voice Comparisons Using GSM, VOIP and Contemporaneous High-Quality Voice Recordings

Authors: Fernandes, Vania; Ferreira, Anibal

AES Conference: 2017 AES International Conference on Audio Forensics · Paper 2-3 · June 2017

Abstract

GGSM and VOIP telephonic voice recordings are frequently used in forensic voice comparisons. However, speech compression, enhancement and error correction algorithms are likely to modify speaker specific voice characteristics. We performed high-quality voice recordings and concomitant GSM and VOIP telephonic voice recordings so that clean high-quality and telephonic versions of the same speech are available. Sustained vowel tasks are also included allowing F0 (AVG and STD), Jitter, Shimmer and HNR extraction for pairs of contemporaneous recordings. Twenty female and seventeen male volunteer subjects participated in the study. We describe the voice recording experiments, present results for five vowels and five acoustic parameters for each subject in GSM and VOIP communication, and we discuss the implications of the main results.

Details

Published in
AES Conference: 2017 AES International Conference on Audio Forensics
Paper number
2-3
Publication date
June 6, 2017
Session subject
Speaker Recognition
Affiliation
University of Porto, Porto, Portugal (See document for exact affiliation information.)
Type
Conference Paper