Papers

Applying A Speaker-dependent Speech Compression Technique to Concatenative TTS Synthesizers

International Journal
2006~2010
작성자
이진영
작성일
2007-02-01 13:32
조회
1928
Authors : Chang-Heon Lee, Sung-Kyo Jung, Hong-Goo Kang

Year : 2007

Publisher / Conference : IEEE Transactions on Audio, Speech, and Language Processing

Volume : 15, 2

Page : 632-640

This paper proposes a new speaker-dependent coding algorithm to efficiently compress a large speech database for corpus-based concatenative text-to-speech (TTS) engines while maintaining high fidelity. To achieve a high compression ratio and meet the fundamental requirements of concatenative TTS synthesizers, such as partial segment decoding and random access capability, we adopt a nonpredictive analysis-by-synthesis scheme for speaker-dependent parameter estimation and quantization. The spectral coefficients are quantized by using a memoryless split vector quantization (VQ) approach that does not use frame correlation. Considering that excitation signals of a specific speaker show low intra-variation especially in the voiced regions, the conventional adaptive codebook for pitch prediction is replaced by a speaker-dependent pitch-pulse codebook trained by a corpus of single-speaker speech signals. To further improve the coding efficiency, the proposed coder flexibly combines nonpredictive and predictive type method considering the structure of the TTS system. By applying the proposed algorithm to a Korean TTS system, we could obtain comparable quality to the G.729 speech coder and satisfy all the requirements that TTS system needs. The results are verified by both objective and subjective quality measurements. In addition, the decoding complexity of the proposed coder is around 55% lower than that of G.729 annex A
전체 365
65 Domestic Conference 최택성, 문선국, 박영철 "Relative Specific Loudness Histogram 특징벡터를 이용한 음악 장르 분류" in 2007년도 하계종합학술발표회, 2007
64 Domestic Conference 김정근, 박영철, 윤대희 "정현파 모델을 사용한 낮은 전송률에서의 HE-AAC 복원방법" in 2007년도 하계종합학술발표회, 2007
63 Domestic Conference 이동금, 박영철, 윤대희 "저 전송율 MPEG AAC 에서 복호화되는 오디오 음질의 개선에 대한 연구" in 2007년도 하계종합학술발표회, 2007
62 International Conference Yoomi Hur, Young-Choel Park, Dae Hee Youn "A New Structure for Stereo Acoustic Echo Cancellation Based on Binaural Cue Coding" in 122th Convention of Audio Engineering Society, pp.7094, 2007
61 International Conference Jaseong Lee, Young-Cheol Park, Dae Hee Youn, Hong-Goo Kang "A Hybrid Warped Linear Prediction (WLP) AAC Audio Coding Algorithm" in 122th Convention of Audio Engineering Society, pp.7002, 2007
60 International Conference Keun-Sup Lee, Young-Cheol Park, Dae Hee Youn "Fixed-Point Processing Optimization of Mpeg Audio Encoder Using Statistical Model" in 122th Convention of Audio Engineering Society, pp.7023, 2007
59 Domestic Conference 이동금, 박영철, 윤대희 "저 전송율 환경에서의 음질 개선에 대한 연구" in 2007년도 한국음향학회 춘계학술발표대회, 2007
58 International Conference Min-Seok Choi, Chang-Hyun Baik, Young-Cheol Park, Hong-Goo Kang "A Soft-Decision Adaptation Mode Controller for an Efficient Frequency-Domain Generalized Sidelobe Canceller" in ICASSP, 2007
57 International Journal Chang-Heon Lee, Sung-Kyo Jung, Hong-Goo Kang "Applying A Speaker-dependent Speech Compression Technique to Concatenative TTS Synthesizers" in IEEE Transactions on Audio, Speech, and Language Processing, vol.15, 2, pp.632-640, 2007
56 International Journal Seungil Kim, Chungyong Lee, Hong-Goo Kang "Optimum beamformer in correlated source environments" in Journal of Acoustical Society of America, vol.120, issue 6, 2006