Looking into the real world: Likelihood ratio variability under forensically realistic conditions
Date
2014
Authors
Kinoshita, Yuko
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Publisher
The Australasian Speech Science and Technology Association, Inc.
Abstract
This study sets out to investigate how the speech of a single speaker can vary depending on their interlocutor and apparent emotional status and, consequently, how this affects likelihood ratio (LR)-based forensic voice comparison, using authentic data from past forensic casework. The results revealed that these factors do have a significant impact on the LR calculations, and voice comparisons between the testing data with mismatched conditions produce much less reliable results than those recorded under matching conditions.
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Source
Proceedings of the 15th Australasian International Speech Science & Technology Conference 2014
Type
Conference paper
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Access Statement
Open Access