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
2094
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 367
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
55 Domestic Conference 현동일, 박영철, 윤대희 "파라메트릭 스테레오 오디오 부호화를 위한 향상된 채널간 위상차 합성" in 2006년도 추계종합학술발표회, 2006
54 International Journal Kyoung Ho Bang, Young-Cheol Park, Jeongil Seo "Audio Transcoding for Audio Streams from a T-DTV Broadcasting Station to a T-DMB Receiver" in ETRI Journal, vol.28, issue5, pp.664-667, 2006
53 International Conference Myung-Suk Song, Chang-Heon Lee, Hong-Goo Kang "Performance Analysis of Various Single Channel Speech Enhancement Algorithms for Automatic Speech Recognition" in INTERSPEECH, 2006
52 International Conference Chang-Heon Lee, Sung-Kyo Jung, Thomas Eriksson, Won-Suk Jun, Hong-Goo Kang "An Efficient Segment-Based Speech Compression Technique for Hand-Held TTS Systems" in INTERSPEECH, 2006
51 International Conference Yang-Won Jung, Hong-Goo Kang, Hyo Jin Kim, Seung Jong Choi "Adaptive Microphone Array with Self-Delay Estimator" in The Proceedings of The AES 29th International Conference, 2006
50 International Conference Young-Cheol Park, Taik-sung Chio, Jae-woong Jung, Dae Hee Youn, Siwook Nam, Jungmin Song "Low Complexity 3D Audio Algorithms for Handheld Devices" in The Proceedings of The AES 29th International Conference, 2006
49 Domestic Conference 백창현, 최민석, 강홍구 "신호 대 잡음비를 이용한 GSC다중 입력 제거기의 갱신 간격 크기 조절" in 제 23회 음성통신 및 신호처리 학술대회, 2006
48 Domestic Conference 정기훈, 이봉진, 김경태, 강홍구 "추출된 특성 파라메터의 Gaussian Mixture Model을 이용한 음성 및 음악 판별" in 2006년도 하계종합학술발표회, 2006