We propose a convolutive non-negative matrix factorization method to improve the intelligibility of speech signal in the context of adverse noise environment. The noise bases are prior learned with Non-negative Matrix Factorization (NMF) algorithm. A modified convolutive NMF with sparse constraint is then derived to extract speech bases from noisy speech. The divergence function is selected as an objective function to get a multiplicative update of speech base and its corresponding weight. The weights of prior learned noise bases are also updated in the update rule. Listening experiments are conducted to assess the intelligibility performance of speech synthesized using the proposed algorithm. Experimental results indicate that the proposed method is very effective to improve the intelligibility of the noisy speech in various noise contexts and it outperforms conventional algorithms.
목차
Abstract 1. Introduction 2. Convolutive Non-negative Matrix Factorization 3. A Novel Convolutive NMF Algorithm for Speech Intelligibility Enhancement 3.1. Signal Model 3.2. Derivation of the Proposed Algorithm 4. Numerical Simulation Experiment 4.1. Corpus and Power Spectra 4.2. Noise Base Training 4.3. Speech Intelligibility Enhancement 4.4. Performance Evaluation 5. Conclusion Acknowledgements References
키워드
Speech intelligibilitySpeech enhancementNon-negative Matrix FactorizationSpeech base learning
저자
Jian Zhou [ Key Laboratory of Intelligent Computing and Signal Processing of Ministry of Education, Anhui University, 230601 Hefei, China ]
Xianyong Fang [ Key Laboratory of Intelligent Computing and Signal Processing of Ministry of Education, Anhui University, 230601 Hefei, China ]
Liang Tao [ Key Laboratory of Intelligent Computing and Signal Processing of Ministry of Education, Anhui University, 230601 Hefei, China ]
Li Zhao [ Key Laboratory of Underwater Acoustic Signal Processing of Ministry of Education, Southeast University, 210096 Nanjing, China ]
보안공학연구지원센터(IJMUE) [Science & Engineering Research Support Center, Republic of Korea(IJMUE)]
설립연도
2006
분야
공학>컴퓨터학
소개
1. 보안공학에 대한 각종 조사 및 연구
2. 보안공학에 대한 응용기술 연구 및 발표
3. 보안공학에 관한 각종 학술 발표회 및 전시회 개최
4. 보안공학 기술의 상호 협조 및 정보교환
5. 보안공학에 관한 표준화 사업 및 규격의 제정
6. 보안공학에 관한 산학연 협동의 증진
7. 국제적 학술 교류 및 기술 협력
8. 보안공학에 관한 논문지 발간
9. 기타 본 회 목적 달성에 필요한 사업
간행물
간행물명
International Journal of Multimedia and Ubiquitous Engineering
간기
월간
pISSN
1975-0080
수록기간
2008~2016
등재여부
SCOPUS
십진분류
KDC 505DDC 605
이 권호 내 다른 논문 / International Journal of Multimedia and Ubiquitous Engineering Vol.9 No.7