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
328
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 326
71 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
70 International Conference Ho Seon Shin, Hong-Goo Kang "Bone-Conduction Speech Enhancement using a Speaker-Independent Filter" in ICEIC, 2014
69 International Conference Soonho Baek, Hong-Goo Kang "Vector Taylor Series based HMM Adaptation for Generalized Cepstrum in Noisy Environment" in ASRU, 2013
68 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
67 International Conference Eunwoo Song, Jongyoub Ryu, Hong-Goo Kang "Speech enhancement for pathological voice using time-frequency trajectory excitation modeling" in APSIPA, 2013
66 International Conference Jinkyu Lee, Hyunson Seo, Hong-Goo Kang "Adaptation of HMM dynamic parameters in reverberant environment" in EUSIPCO, 2013
65 International Conference Jae-Mo Yang, Hong-Goo Kang "Adaptive multichannel linear prediction based dereverberation in time-varying room environments" in EUSIPCO, 2013
64 International Conference JeeSok Lee, Frank Soong, Hong-Goo Kang "Source-Filter based Full-band Adaptive Harmonic Model and Its Application to Speech Prosody Modification" in INTERSPEECH, 2013
63 International Conference Young-Sun Joo, Chi-Sang Jung, Hong-Goo Kang "Enhancement of spectral clarity for HMM-based text-to-speech systems" in ICASSP, 2013
62 International Conference Taegyu Lee, Seokjin Lee, Young-cheol Park, Dae Hee Youn "Virtual bass system based on a multiband harmonic generation" in ICCE, 2013