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
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]
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|Source:||ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings|
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