Accession Number : AD1032785


Title :   Improving the Effectiveness of Speaker Verification Domain Adaptation With Inadequate In-Domain Data


Descriptive Note : Technical Report


Corporate Author : MIT Lincoln Laboratory Lexington United States


Personal Author(s) : Borgstrom, Bengt J ; Singer,Elliot ; Reynolds,Douglas A ; Sadjadi,Omid


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/1032785.pdf


Report Date : 20 Aug 2017


Pagination or Media Count : 5


Abstract : This paper addresses speaker verification domain adaptation with inadequate in-domain data. Specifically, we explore the cases where in-domain data sets do not include speaker labels, contain speakers with few samples, or contain speakers with low channel diversity. Existing domain adaptation methods are reviewed, and their shortcomings are discussed. We derive an unsupervised version of fully Bayesian adaptation which reduces the reliance on rich in-domain data. When applied to domain adaptation with inadequate in-domain data, the proposed approach yields competitive results when the samples per speaker are reduced, and outperforms existing supervised methods when the channel diversity is low, even without requiring speaker labels. These results are validated on the SRE16, which uses a highly inadequate in-domain data set.


Descriptors :   bayesian networks , digital data , uncertainty , optimization , covariance , coefficients , random variables , gaussian distributions , discriminant analysis , speech


Subject Categories : Statistics and Probability


Distribution Statement : APPROVED FOR PUBLIC RELEASE