Catalin Grigoras (UC Denver, USA)
Title: Digital Audio Authentication: Framework, Challenges and Solutions
Abstract: The goal of this presentation is to provide a summary review of the latest developments in conducting comprehensive examinations of digital audio authenticity which rely on the results of multiple analyses to inform an ultimate scientific finding or unbiased opinion. Digital audio authentication is a process of establishing the provenance of a questioned recording to determine whether it is consistent with an original one or if there is evidence of editing. This presentation proposes the organization of several techniques in a logical manner for the authentication of digital audio recordings. Special attention has been given to interpreting results from individual analyses and incorporating them into a holistic view of a recording’s authenticity where a finding can be corroborated against the results of other analyses. Only in this way can an examiner present a conclusion with confidence and assurance that all possible hypotheses have been exhausted in the execution of this important endeavor. The framework for digital audio authentication that will be discussed involves accurate, repeatable, reliable, unbiased, and scientific analyses derived from peer reviewed publications in order to meet court guidelines or case precedence, best practice recommendations, and the appropriate criteria for international legal systems. The presentation will also include some of the nowadays challenges and solutions.
Georgina Brown (Lancaster University, UK)
Petr Motlicek (Idiap / EPFL, Switzerland)