Papers

Adaptation of HMM dynamic parameters in reverberant environment

International Conference
2011~2015
작성자
한혜원
작성일
2013-09-01 00:36
조회
1624
Authors : Jinkyu Lee, Hyunson Seo, Hong-Goo Kang

Year : 2013

Publisher / Conference : EUSIPCO

This paper presents a new adaptation method for HMM-based automatic speech recognition system in a reverberant environment. Unlike the conventional approach that estimates dynamic mean vectors by adopting a spline interpolation technique, the proposed algorithm uses the transform derived by the mathematical property. Additionally, we introduce the adaptation for covariance matrices with the domain conversion process induced by log-normal distribution, because the statistical parameters are affected by not only mean vectors but also covariance matrices. Consequently, all statistical parameters in HMM can be adapted by the exact same transform structure. Experimental results show that the proposed method improves the recognition rate, in spite of having much simple adaptation process. Also it is robust to the estimation error that is unavoidable while extracting the reverberation time related parameters.
전체 363
233 Domestic Journal 박영철, 이태규, 윤대희 "MPEG-H 3D 오디오 바이노럴 렌더링 기술 표준화" in 대한전기학회, 전기의 세계, vol.64, 제 2호, pp.27-31, 2015
232 International Journal Taegyu Lee, Yonghyun Baek, Young-Cheol Park, Dae Hee Youn "Stereo upmix-based binaural auralization for mobile devices" in IEEE Transactions on Consumer Electronics, vol.60, issue 3, pp.411-419, 2014
231 International Conference Eunwoo Song, Hong-Goo Kang, Joonil Lee "Fixed-point implementation of MPEG-D unified speech and audio coding decoder" in 19th International Conference on Digital Signal Processing (DSP), pp.110-113, 2014
230 International Journal Soonho Baek, Hong-Goo Kang "Selection of spectral compressive operator for vector Taylor series-based model adaptation in noisy environments" in The Journal of the Acoustical Society of America, vol.135, 2014
229 International Conference Soonho Baek, Hong-Goo Kang "Mean normalization of power function based cepstral coefficients for robust speech recognition in noisy environment" in ICASSP, 2014
228 International Journal Jae-Mo Yang, Hong-Goo Kang "Online Speech Dereverberation Algorithm Based on Adaptive Multichannel Linear Prediction" in IEEE/ACM Transactions on Audio, Speech, and Language Processing, vol.22, issue 3, pp.608-619, 2014
227 International Conference Ho Seon Shin, Hong-Goo Kang "Bone-Conduction Speech Enhancement using a Speaker-Independent Filter" in ICEIC, 2014
226 Domestic Journal 오현오, 이태규, 전세운, 윤대희, 박영철, 서정일, 이용주 "모바일 3D 사운드 : 바이노럴 오디오 기술 동향" in 방송공학회논문지, vol.19, 제 1호, pp.65-74, 2014
225 International Journal Taegyu Lee, Yonghyun Baek, Young-Cheol Park, Dae Hee Youn "Stereo upmix-based binaural auralization for mobile devices" in IEEE Transactions on Consumer Electronics, vol.60, issue.3, pp.411-419, 2014
224 International Journal Jae-Mo Yang, Hong-Goo Kang "An Efficient Multichannel Linear Prediction-Based Blind Equalization Algorithm in Near Common Zeros Condition" in IEEE Signal Processing Letters, vol.21, issue 3, pp.306-310, 2014