A comparative study of feature and score normalization for speaker verification
文献类型：期刊论文
| 作者 | Zheng, R ; Zhang, SW; Xu, B; Zhang, D; Jain, AK
|
| 刊名 | ADVANCES IN BIOMETRICS, PROCEEDINGS
 |
| 出版日期 | 2006 |
| 卷号 | 3832页码:531-538 |
| 英文摘要 | In speaker verification, it is necessary to reduce the influence of different environmental conditions. In this paper, two stages of normalization techniques, feature normalization and score normalization, are examined for decreasing the mismatch between training and testing acoustic conditions. At the first stage, cepstral mean and variance normalization (CMVN) is modified to normalize the cepstral coefficients with the similar segmental parameter statistics. Next, due to score variability between verification trials, Test-dependent zero-score normalization (TZnorm) and Zero-dependent test-score normalization (ZTnorm) are comparatively presented to transform the output scores entirely and make the speaker-independent decision threshold more robust under adverse conditions. Experiments on NIST2002 SRE corpus show that the normalizations with CMVN in feature stage and ZTnorm in score stage achieved 20.3% relative reduction of EER and 18.1% relative reduction of the minimal DCF compared to the baseline system using CMN and zero normalization. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Computer Science, Artificial Intelligence ; Computer Science, Theory & Methods |
| 研究领域[WOS] | Computer Science |
| 关键词[WOS] | ROBUST SPEECH RECOGNITION |
| 收录类别 | ISTP ; SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000235768300071 |
| 公开日期 | 2015-12-24 |
| 源URL | [http://ir.ia.ac.cn/handle/173211/9294]  |
| 专题 | 自动化研究所_09年以前成果 |
| 作者单位 | Chinese Acad Sci, Inst Automat, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zheng, R,Zhang, SW,Xu, B,et al. A comparative study of feature and score normalization for speaker verification[J]. ADVANCES IN BIOMETRICS, PROCEEDINGS,2006,3832:531-538. |
| APA | Zheng, R,Zhang, SW,Xu, B,Zhang, D,&Jain, AK.(2006).A comparative study of feature and score normalization for speaker verification.ADVANCES IN BIOMETRICS, PROCEEDINGS,3832,531-538. |
| MLA | Zheng, R,et al."A comparative study of feature and score normalization for speaker verification".ADVANCES IN BIOMETRICS, PROCEEDINGS 3832(2006):531-538. |
入库方式： OAI收割
来源：自动化研究所
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