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UIAI System for Short-Duration Speaker Verification Challenge 2020

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Document pages: 5 pages

Abstract: In this work, we present the system description of the UIAI entry for theshort-duration speaker verification (SdSV) challenge 2020. Our focus is on Task1 dedicated to text-dependent speaker verification. We investigate differentfeature extraction and modeling approaches for automatic speaker verification(ASV) and utterance verification (UV). We have also studied different fusionstrategies for combining UV and ASV modules. Our primary submission to thechallenge is the fusion of seven subsystems which yields a normalized minimumdetection cost function (minDCF) of 0.072 and an equal error rate (EER) of2.14 on the evaluation set. The single system consisting of a pass-phraseidentification based model with phone-discriminative bottleneck features givesa normalized minDCF of 0.118 and achieves 19 relative improvement over thestate-of-the-art challenge baseline.

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