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Background population database

A corpus of speaker recordings used to calibrate the LR in a forensic comparison. Must be matched to the case in language, channel, and population (sex, age, dialect) to produce a valid LR; mismatch is a major source of LR unreliability in multilingual casework.

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Related terms

BATVOXC_llr (log-likelihood ratio cost)ENFSI BPMENFSI verbal scaleEqual error rate (EER)i-vectorNIST SRE (Speaker Recognition Evaluation)PLDA (Probabilistic Linear Discriminant Analysis)x-vector

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