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Forensic voice Comparison with Japanese Vowels Accoustics - a likelihood ration-based approach using segmental cepstra

Rose, Philip

Description

The suitability of vowel cepstral spectra for forensic voice comparison is explored within a likelihood ratio-based framework. Noncontemporaneous landline telephone recordings of 297 male Japanese speakers are compared using only two replicates each of their five vowels. 14 cepstrally-mean-subtracted LPC CCs from dc to 5 kHz are used as features. Multivariate likelihood ratios estimated for the 297 target- and 43956 nontarget trials give good results: an equal error rate of 0.28% and log...[Show more]

CollectionsANU Research Publications
Date published: 2011
Type: Conference paper
URI: http://hdl.handle.net/1885/30786
Source: Proceedings of the ICPhS XVII 2011

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