Likelihood-ratio forensic voice comparison using parametric representations of the formant trajectories of diphthongs
Non-contemporaneous speech samples from 27 male speakers of Australian English were compared in a forensic likelihood-ratio framework. Parametric curves (polynomials and discrete cosine transforms) were fitted to the formant trajectories of the diphthongs a, e, o, a, and . The estimated coefficient values from the parametric curves were used as input to a generative multivariate-kernel-density formula for calculating likelihood ratios expressing the probability of obtaining the observed...[Show more]
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|Source:||Journal of the Acoustical Society of America|
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