The effect of deep learning methods on deepfake audio detection for digital investigation

M Mcuba, A Singh, RA Ikuesan, H Venter - Procedia Computer Science, 2023 - Elsevier
Voice cloning methods have been used in a range of ways, from customized speech
interfaces for marketing to video games. Current voice cloning systems are smart enough to …

Tutorial on logistic-regression calibration and fusion: converting a score to a likelihood ratio

GS Morrison - Australian Journal of Forensic Sciences, 2013 - Taylor & Francis
Logistic-regression calibration and fusion are potential steps in the calculation of forensic
likelihood ratios. The present paper provides a tutorial on logistic-regression calibration and …

[หนังสือ][B] An introduction to application-independent evaluation of speaker recognition systems

DA Van Leeuwen, N Brümmer - 2007 - Springer
In the evaluation of speaker recognition systems—an important part of speaker classification
[1], the trade-off between missed speakers and false alarms has always been an important …

[PDF][PDF] The speaker partitioning problem.

N Brümmer, E De Villiers - Odyssey, 2010 - isca-archive.org
We give a unification of several different speaker recognition problems in terms of the
general speaker partitioning problem, where a set of N inputs has to be partitioned into …

Emulating DNA: Rigorous quantification of evidential weight in transparent and testable forensic speaker recognition

J Gonzalez-Rodriguez, P Rose… - … on Audio, Speech …, 2007 - ieeexplore.ieee.org
Forensic DNA profiling is acknowledged as the model for a scientifically defensible
approach in forensic identification science, as it meets the most stringent court admissibility …

Measuring, refining and calibrating speaker and language information extracted from speech

N Brummer - 2010 - scholar.sun.ac.za
We propose a new methodology, based on proper scoring rules, for the evaluation of the
goodness of pattern recognizers with probabilistic outputs. The recognizers of interest take …

On calibration of language recognition scores

N Brummer, DA Van Leeuwen - 2006 IEEE Odyssey-The …, 2006 - ieeexplore.ieee.org
Recent publications have examined the topic of calibration of confidence scores in the field
of (binary-hypothesis) speaker detection. We extend this topic to the case of multiple …

A comparison of procedures for the calculation of forensic likelihood ratios from acoustic–phonetic data: Multivariate kernel density (MVKD) versus Gaussian mixture …

GS Morrison - Speech Communication, 2011 - Elsevier
Two procedures for the calculation of forensic likelihood ratios were tested on the same set
of acoustic–phonetic data. One procedure was a multivariate kernel density procedure …

An empirical estimate of the precision of likelihood ratios from a forensic-voice-comparison system

GS Morrison, C Zhang, P Rose - Forensic science international, 2011 - Elsevier
An acoustic–phonetic forensic-voice-comparison system was constructed using the time-
averaged formant values of tokens of 61 male Chinese speakers'/i/,/e/, and/a/monophthongs …

A demonstration of the application of the new paradigm for the evaluation of forensic evidence under conditions reflecting those of a real forensic-voice-comparison …

E Enzinger, GS Morrison, F Ochoa - Science & Justice, 2016 - Elsevier
The new paradigm for the evaluation of the strength of forensic evidence includes: The use
of the likelihood-ratio framework. The use of relevant data, quantitative measurements, and …