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Forensic voice comparison with secular shibboleths - A hybrid fused GMM-multivariate likelihood ratio-based approach using alveolo-palatal fricative cepstral spectra

Rose, Philip


The suitability of voiceless fricative spectra for forensic voice comparison is explored within a Likelihood Ratio-based framework. Non-contemporaneous landline telephone recordings of 99 male Japanese speakers are compared using only tokens of their voiceless alveolo-patalal fricative [6]. A subset of mean-cepstrally-subtracted LPC CCs from the fricative spectrum from dc to 5 kHz is used. GMM/UBM and multivariate likelihood ratios are extracted for the 99 target and 4851 non-target trials, and...[Show more]

CollectionsANU Research Publications
Date published: 2011
Type: Conference paper
Source: On the Construction of Low-pass Filters on the Unit Sphere
DOI: 10.1109/ICASSP.2011.5947704


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