Evaluation and Calibration of Short-Term Aging Effects in Speaker Verification

dc.contributor.authorKelly, Finnianen_US
dc.contributor.authorHansen, John H. L.en_US
dc.contributor.utdAuthorKelly, Finnian
dc.contributor.utdAuthorHansen, John H. L.
dc.date.accessioned2016-09-23T20:56:35Z
dc.date.available2016-09-23T20:56:35Z
dc.date.created2015-09-06en_US
dc.description.abstractA speaker verification evaluation is presented on the Multisession Audio Research Project (MARP) corpus, for which speakers were recorded at regular intervals, in consistent conditions, over a period of three years. It is observed that the performance of an i-vector system with probabilistic linear discriminant analysis (PLDA) modelling decreases progressively, in terms of both discrimination and calibration, as the time intervals between train and test sessions increase. For male speakers, the equal error rate (EER) increases from 2.4% to 4.4% when the interval between sessions grows from several months to three years. An extension to conventional linear score calibration is proposed, whereby short-term aging information is incorporated as an additional factor in the score transformation. This new approach improves discrimination and calibration performance in the presence of increasing time intervals between train and test sessions, compared with score-only calibration. Copyrighten_US
dc.description.sponsorshipPartially funded by AFRL (contract # FA8750-12-1-0188)en_US
dc.identifier.bibliographicCitationKelly, F., and J. H. L. Hansen. 2015. "Evaluation and calibration of short-term aging effects in speaker verification." , INTERSPEECH 2015 (16th Annual Conference of the International Speech Communication Association), pp. 224-228.en_US
dc.identifier.issn2308-457Xen_US
dc.identifier.urihttp://hdl.handle.net/10735.1/5059
dc.identifier.volume2015en_US
dc.language.isoenen_US
dc.publisherInternational Speech and Communication Associationen_US
dc.rights©2015 ISCA. All rights reserved.en_US
dc.source.journalINTERSPEECH 2015en_US
dc.subjectAgingen_US
dc.subjectCalibrationen_US
dc.subjectAutism spectrum disordersen_US
dc.subjectSpeech perceptionen_US
dc.titleEvaluation and Calibration of Short-Term Aging Effects in Speaker Verificationen_US
dc.type.genrearticleen_US

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