대한음성학회:학술대회논문집 (Proceedings of the KSPS conference)
- 대한음성학회 2007년도 한국음성과학회 공동학술대회 발표논문집
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- Pages.127-130
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- 2007
신뢰성 높은 서브밴드 선택을 이용한 잡음에 강인한 화자식별
Noise Robust Speaker Identification using Reliable Sub-Band Selection in Multi-Band Approach
- Kim, Sung-Tak (School of Engineering, Information and Communications University) ;
- Ji, Mi-Gyeong (School of Engineering, Information and Communications University) ;
- Kim, Hoi-Rin (School of Engineering, Information and Communications University)
- 발행 : 2007.05.18
초록
The conventional feature recombination technique is very effective in the band-limited noise condition, but in broad-band noise condition, the conventional feature recombination technique does not produce notable performance improvement compared with the full-band system. To cope with this drawback, we introduce a new technique of sub-band likelihood computation in the feature recombination, and propose a new feature recombination method by using this sub-band likelihood computation. Furthermore, the reliable sub-band selection based on the signal-to-noise ratio is used to improve the performance of this proposed feature recombination. Experimental results shows that the average error reduction rate in various noise condition is more than 27% compared with the conventional full-band speaker identification system.
키워드