Title
MLLR transforms of self-organized units as features in speaker recognition
Abstract
Using speaker adaptation parameters, such as maximum likelihood linear regression (MLLR) adaptation matrices, as features for speaker recognition (SR) has been shown to perform well and can also provide complementary information for fusion with other acoustic-based SR systems, such as GMM-based systems. In order to estimate the adaptation parameters, a speech recognizer in the SR domain is required which in turn requires transcribed training data for recognizer training. This limits the approach only to domains where training transcriptions are available. To generalize the adaptation parameter approach to domains without transcriptions, we propose the use of self-organized unit recognizers that can be trained without supervision (or transcribed data). We report results on the 2002 NIST speaker recognition evaluation (SRE2002) extended data set and show that using MLLR parameters estimated from SOU recognizers give comparable performance to systems using a matched recognizers. SOU recognizers also outperform those using cross-lingual recognizers. When we fused the SOU- and word recognizers, SR equal error rate (EER) can be reduced by another 15%. This suggests SOU recognizers can be useful whether or not transcribed data for recognition training are available.
Year
DOI
Venue
2012
10.1109/ICASSP.2012.6288891
ICASSP
Keywords
Field
DocType
acoustic-based sr systems,self-organized unit recognizers,sou recognizers,nist speaker recognition evaluation extended data set,maximum likelihood linear regression adaptation matrices,regression analysis,gmm-based systems,maximum likelihood estimation,matrix algebra,sr equal error rate,cross-lingual recognizers,sre2002 extended data set,self-organized units,matched recognizers,speaker recognition,sr eer,word recognizers,complementary information,gaussian processes,mllr transforms,unsupervised learning,speaker adaptation parameters,gaussian mixture model,speech recognition,support vector machines,strontium,hidden markov models,acoustics
Transcription (linguistics),Pattern recognition,Computer science,Support vector machine,Word error rate,Speech recognition,Unsupervised learning,Speaker recognition,NIST,Artificial intelligence,Gaussian process,Hidden Markov model
Conference
ISSN
ISBN
Citations 
1520-6149 E-ISBN : 978-1-4673-0044-5
978-1-4673-0044-5
2
PageRank 
References 
Authors
0.37
7
6
Name
Order
Citations
PageRank
Manhung Siu146461.40
Omer Lang220.37
Herbert Gish3447100.85
Stephen A. Lowe481.27
Arthur Chan523915.28
Owen Kimball68317.82