ASVspoof 2017 Version 2.0: meta-data analysis and baseline enhancements

Hector Delgado, Massimiliano Todisco, Md Sahidullah, Nicholas Evans, Tomi Kinnunen, Kong Aik Lee, Junichi Yamagishi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The now-acknowledged vulnerabilities of automatic speaker verification (ASV) technology to spoofing attacks have spawned interests to develop so-called spoofing countermeasures. By providing common databases, protocols and metrics for their assessment, the ASVspoof initiative was born to spearhead research in this area. The first competitive ASVspoof challenge held in 2015 focused on the assessment of countermeasures to protect ASV technology from voice conversion and speech synthesis spoofing attacks. The second challenge switched focus to the consideration of replay spoofing attacks and countermeasures. This paper describes Version 2.0 of the ASVspoof 2017 database which was released to correct data anomalies detected post-evaluation. The paper contains as-yet unpublished meta-data which describes recording and playback devices and acoustic environments. These support the analysis of replay detection performance and limits. Also described are new results for the official ASVspoof baseline system which is based upon a constant Q cesptral coefficient frontend and a Gaussian mixture model backend. Reported are enhancements to the baseline system in the form of
log-energy coefficients and cepstral mean and variance normalisation in addition to an alternative i-vector backend. The best results correspond to a 48% relative reduction in equal error rate when compared to the original baseline system.
Original languageEnglish
Title of host publicationSpeaker Odyssey 2018
Subtitle of host publicationThe Speaker and Language Recognition Workshop
Place of PublicationLes Sables d’Olonne, France
PublisherISCA
Pages296-303
Number of pages8
DOIs
Publication statusPublished - 29 Jun 2018
EventThe Speaker and Language Recognition Workshop - Les Sables d’Olonne, France
Duration: 26 Jun 201829 Jun 2018
http://www.odyssey2018.org/

Publication series

Name
PublisherISCA
ISSN (Electronic)2312-2846

Conference

ConferenceThe Speaker and Language Recognition Workshop
Abbreviated titleSpeaker Odyssey 2018
Country/TerritoryFrance
CityLes Sables d’Olonne
Period26/06/1829/06/18
Internet address

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