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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Pinheiro, H.N.B. Tsang Ing Ren Cavalcanti, G.D.C. Tsang Ing Jyh Sijbers, J. |
| Copyright Year | 2014 |
| Description | Author affiliation: Dept. of Phys., Univ. of Antwerp, Antwerp, Belgium (Sijbers, J.) || Bell Labs., Alcatel-Lucent, Antwerp, Belgium (Tsang Ing Jyh) || Centro de Inf. (CIn), Univ. Fed. de Pernambuco (UFPE), Recife, Brazil (Pinheiro, H.N.B.; Tsang Ing Ren; Cavalcanti, G.D.C.) |
| Abstract | This paper proposes the use of the type-2 fuzzy GMM (T2FGMM) framework in order to improve the verification rates of the standard GMM-UBM text-independent speaker verification system in noisy environments. Based on type-2 fuzzy sets, the T2FGMM framework describes GMMs with uncertain parameters and provides likelihood intervals for them. The proposed method (T2F-GMM-UBM) estimates the parameter intervals using the noisy speeches from the speakers and the Bayesian estimation used in the standard GMM-UBM system. The proposed method was evaluated using the MIT Device Speaker Verification Corpus (MITDSVC) which contains speeches from 48 speakers recorded in three different locations: a quiet office, a mildly noisy lobby, and a busy street intersection. The Equal Error Rate (EER) was computed for each speaker and the mean and standard deviation were analyzed. Although the proposed method did not achieve better performance in the office location, significant improvements were achieved in both lobby and street intersection locations. The improvement in the lobby was 14.21% while in the street intersection location was 10.47%. The left tailed paired Rank Sign Wilcox on Test was also performed in both locations and the p-values found were 0.0127 and 0.0230, respectively. The proposed method proved to have better performance in noisy environments compared to the standard GMM-UBM system. |
| Starting Page | 4531 |
| Ending Page | 4536 |
| File Size | 446760 |
| Page Count | 6 |
| File Format | |
| ISBN | 9781479952090 |
| ISSN | 10514651 |
| DOI | 10.1109/ICPR.2014.775 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2014-08-24 |
| Publisher Place | Sweden |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Noise measurement Speech Standards Mathematical model Adaptation models Gaussian distribution Vectors |
| Content Type | Text |
| Resource Type | Article |
| Subject | Computer Vision and Pattern Recognition |
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