Papers

Vector Taylor Series based HMM Adaptation for Generalized Cepstrum in Noisy Environment

International Conference
2011~2015
작성자
한혜원
작성일
2013-12-01 00:37
조회
298
Authors : Soonho Baek, Hong-Goo Kang

Year : 2013

Publisher / Conference : ASRU

This paper proposes a novel HMM adaptation algorithm for robust automatic speech recognition (ASR) system in noisy environments. The HMM adaptation using vector Taylor series (VTS) significantly improves the ASR performance in noisy environments. Recently, the power normalized cepstral coefficient (PNCC) that replaces a logarithmic mapping function with a power mapping function has been proposed and it is proved that the replacement of the mapping function is robust to additive noise. In this paper, we extend the VTS based approach to the cepstral coefficients obtained by using a power mapping function instead of a logarithmic mapping function. Experimental results indicate that HMM adaptation in the cepstrum obtained by using a power mapping function improves the ASR performance comparing the VTS based conventional approach for mel-frequency cepstral coefficients (MFCCs).
전체 322
222 International Conference Soonho Baek, Hong-Goo Kang "Vector Taylor Series based HMM Adaptation for Generalized Cepstrum in Noisy Environment" in ASRU, 2013
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219 Domestic Conference 이태규, 이지석, 강홍구 "스펙트럼과 통계적 모델링을 통한 음질 개선" in 한국음향학회 추계학술발표대회, 2013
218 International Conference Jung-Won Lee, Hong-Goo Kang, Samuel Kim, Yoonjae Lee "Detecting pathological speech using local and global characteristics of harmonic-to-noise ratio" in APSIPA, 2013
217 International Journal Jung-Won Lee, Hong-Goo Kang, Jeung-Yoon Choi, Young-Ik Son "An Investigation of Vocal Tract Characteristics for Acoustic Discrimination of Pathological Voices" in BioMed Research International, 2013
216 International Conference Eunwoo Song, Jongyoub Ryu, Hong-Goo Kang "Speech enhancement for pathological voice using time-frequency trajectory excitation modeling" in APSIPA, 2013
215 Domestic Journal 이정인, 최정윤, 강홍구 "음성감정인식에서 음색 특성 및 영향 분석" in 방송공학회논문지, vol.18, 제 5호, pp.771-774, 2013
214 Domestic Journal 이정인, 강홍구 "음성감정인식에서의 톤 정보의 중요성 연구" in 방송공학회논문지, vol.18, 제 5호, pp.713-721, 2013
213 International Conference Jinkyu Lee, Hyunson Seo, Hong-Goo Kang "Adaptation of HMM dynamic parameters in reverberant environment" in EUSIPCO, 2013