Forensic voice comparison and the paradigm shift.
- G. Morrison
- Computer ScienceScience & justice : journal of the Forensic…
- 1 December 2009
Measuring the validity and reliability of forensic likelihood-ratio systems.
- G. Morrison
- Computer ScienceScience & justice : journal of the Forensic…
- 1 September 2011
Likelihood-ratio forensic voice comparison using parametric representations of the formant trajectories of diphthongs.
- G. Morrison
- MathematicsJournal of the Acoustical Society of America
- 8 April 2009
The cross-validated likelihood ratios from the best-performing system for each vowel phoneme were fused using logistic regression and the resulting fused system had a very low error rate, thus meeting one of the requirements for admissibility in court.
L1-Spanish Speakers' Acquisition of the English /i /—/I/ Contrast: Duration-based Perception is Not the Initial Developmental Stage
- G. Morrison
- LinguisticsLanguage and Speech
- 1 December 2008
It is hypothesized that L1-Spanish listeners' preference for duration cues is not an initial strategy for distinguishing English /i/ and /I/.
A comparison of procedures for the calculation of forensic likelihood ratios from acoustic-phonetic data: Multivariate kernel density (MVKD) versus Gaussian mixture model-universal background model…
- G. Morrison
- Computer ScienceSpeech Communication
- 1 February 2011
L1-Spanish Speakers’ Acquisition of the English /i/—/ / Contrast II: Perception of Vowel Inherent Spectral Change1
- G. Morrison
- LinguisticsLanguage and Speech
- 20 November 2009
L1-Spanish learners of English have been reported to distinguish English /i/ and / / on the basis of duration cues, whereas L1-English listeners primarily use spectral cues. Morrison (2008a)…
Forensic Voice Comparison
- Cuiling Zhang, G. Morrison
- Computer Science
- 30 December 2015
Perception of English /i/ and /I/ by Japanese and Spanish Listeners: Longitudinal Results
- G. Morrison
- Linguistics
- 20 May 2004
Flege’s Speech Learning Model predicts that if an L2 learner perceives an L2 speech sound as similar to an L1 speech sound, the two sounds will be combined as a diaphone category, the properties of…
Perception and Production of Spanish Vowels by English Speakers
- G. Morrison
- Linguistics, Physics
- 2003
Native Spanish speakers and Canadian English learners of Spanish produced the five Spanish vowels in utterance final /sV/ syllables. The syllables were presented in random order to Spanish and…
Tutorial on logistic-regression calibration and fusion:converting a score to a likelihood ratio
- G. Morrison
- Computer Science
- 7 May 2013
The present paper provides a tutorial on logistic-regression calibration and fusion at a practical conceptual level with minimal mathematical complexity.
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