코퍼스 기반 음성합성기를 위한 합성단위 경계 스펙트럼 평탄화 알고리즘|RISS 상세보기

다국어 초록 (Multilingual Abstract)

Speech unit concatenation with a large database is presently the most popular method for speech synthesis. In this approach, the mismatches at the unit boundaries are unavoidable and become one of the reasons for quality degradation. This paper proposes an algorithm to reduce undesired discontinuities between the subsequent units. Optimal matching points are calculated in two steps. Firstly, the fullback-Leibler distance measurement is utilized for the spectral matching, then the unit sliding and the overlap windowing are used for the waveform matching. The proposed algorithm is implemented for the corpus-based unit concatenating Korean text-to-speech system that has an automatically labeled database. Experimental results show that our algorithm is fairly better than the raw concatenation or the overlap smoothing method.

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참고문헌 (Reference)

1 "Unit selection in a concatenative speech synthesis system using a large speech database" 959-962, 1996

2 "Synthesis of unseen context and spectral and pitch contour smoothing in concatenated text to speech synthesis" 469-472, 2002

3 "Reducing audible spectral discontinuities" 39-51, 2001

4 "Optimal coupling of diphones" Springer (chapter 23) : 293-304, 1997

5 "On the reduction of concatenation artifacts in diphone synthesis" 1983-1986, 1998

6 "High-quality prosodic modification of speech signals" 2446-2449, 1996

7 "A comparison of spectral smoothing methods for segment concatenation based speech synthesis" Elsevier Science 36 : 343-374, 2002

1 "Unit selection in a concatenative speech synthesis system using a large speech database" 959-962, 1996

2 "Synthesis of unseen context and spectral and pitch contour smoothing in concatenated text to speech synthesis" 469-472, 2002

3 "Reducing audible spectral discontinuities" 39-51, 2001

4 "Optimal coupling of diphones" Springer (chapter 23) : 293-304, 1997

5 "On the reduction of concatenation artifacts in diphone synthesis" 1983-1986, 1998

6 "High-quality prosodic modification of speech signals" 2446-2449, 1996

7 "A comparison of spectral smoothing methods for segment concatenation based speech synthesis" Elsevier Science 36 : 343-374, 2002

연월일	이력구분	이력상세
2009-01-01	등재	학술지 폐간(기타)
2007-01-24	학술지명변경	한글명 : 말소리</br>외국어명 : MALSORI
2006-01-01	등재	등재학술지 선정(등재후보2차)
2005-10-10	학술지명변경	한글명 : 말소리</br>외국어명 : MALSORI
2005-05-30	학술지명변경	한글명 : 말소리</br>외국어명 : MALSORI
2005-01-01	등재	등재후보 1차 PASS(등재후보1차)
2003-01-01	등재	등재후보학술지 선정(신규평가)

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코퍼스 기반 음성합성기를 위한 합성단위 경계 스펙트럼 평탄화 알고리즘 = A Spectral Smoothing Algorithm for Unit Concatenating Speech Synthesis

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