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Forensic voice comparison with monophthongal formant trajectories - A likelihood ratio-based discrimination of 'schwa' vowel acoustics in a close social group of young Australian females

Rose, Philip

Description

An experiment is described relating to estimation of strength of evidence in likelihood ratio-based forensic voice comparison. It is asked whether a better performance is obtained from point estimation of formant pattern targets in monophthongal vowel acoustics rather than formant trajectories. The hypothesis is tested on non-contemporaneous recordings of a custom-built challenging database of 26 young Australian female voices performing a map task. Evaluation with the log likelihood ratio cost...[Show more]

CollectionsANU Research Publications
Date published: 2015
Type: Conference paper
URI: http://hdl.handle.net/1885/103394
Source: ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
DOI: 10.1109/ICASSP.2015.7178886

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