지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2014.9
- 수록면
- 1,064 - 1,069 (6page)
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초록· 키워드
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In this paper, we propose a novel approach to improve the performance of a voice activity detection(VAD) which is based on the adaptive band-partitioning with the likelihood ratio(LR). The previous method based on the adaptive band-partitioning use the weights that are derived from the variance of the spectral. In our VAD algorithm, the weights are derived from LR, and then the weights are incorporated with the entropy. The proposed algorithm discriminates the voice activity by comparing the weighted entropy with the adaptive threshold. Experimental results show that the proposed algorithm yields better results compared to the conventional VAD algorithms. Especially, the proposed algorithm shows superior improvement in non-stationary noise environments.
목차
ABSTRACT
1. 서론
2. 기존의 가중치를 적용한 적응 밴드 분할
3. 제안된 우도비 기반의 적응 밴드 분할
4. 실험 결과 및 고찰
5. 결론
REFERENCE
참고문헌 (10)
참고문헌 신청
1. [학술대회논문] - Y. Gao / 2001 / The SMV Algorithm Selected by TIA and 3GPP2for CDMA Applications / Proceeding of IEEE International Conference on Acoustics, Speech, and Signal Processing 2 : 709 ~ 712
2. [기타자료] - / 2005 / 3GPP2 Spec., Source-controlled Variablerate Multimedia Wideband Speech Codec (VMR-WB), Service Option 62 and 63 for Spread Spectrum Systems, 3GPP2-C.S0052-A, v.1.0
3. [학술대회논문] - Y.D. Cho / 2001 / Improved Voice Activity Detection based on a Smoothed Statistical Likelihood Ratio / Proceeding of IEEE International Conference on Acoustics, Speech, and Signal Processing 2 : 7 ~ 11
4. [학술지(정기간행물)] - J.H. Song / 2013 / Voice Activity Detection based on Generalized Normal-Laplace Distribution Incorporating Conditional MAP / IEICE Transactions on Information and Systems E96-D (12) : 2888 ~ 2891
5. [학술지(정기간행물)] - Y.S. Park / 2012 / Voice Activity Detection Using Global Speech Absence Probability Based on Teager Energy for Speech Enhancement / IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS E95D (10) : 2568 ~ 2571
2. [기타자료] - / 2005 / 3GPP2 Spec., Source-controlled Variablerate Multimedia Wideband Speech Codec (VMR-WB), Service Option 62 and 63 for Spread Spectrum Systems, 3GPP2-C.S0052-A, v.1.0
3. [학술대회논문] - Y.D. Cho / 2001 / Improved Voice Activity Detection based on a Smoothed Statistical Likelihood Ratio / Proceeding of IEEE International Conference on Acoustics, Speech, and Signal Processing 2 : 7 ~ 11
4. [학술지(정기간행물)] - J.H. Song / 2013 / Voice Activity Detection based on Generalized Normal-Laplace Distribution Incorporating Conditional MAP / IEICE Transactions on Information and Systems E96-D (12) : 2888 ~ 2891
5. [학술지(정기간행물)] - Y.S. Park / 2012 / Voice Activity Detection Using Global Speech Absence Probability Based on Teager Energy for Speech Enhancement / IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS E95D (10) : 2568 ~ 2571
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UCI(KEPA) : I410-ECN-0101-2015-004-002789801