Vector Quantization of Speech Spectral Parameters Using Statistics of Static and Dynamic Features
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概要
- 論文の詳細を見る
This paper proposes a vector quantization scheme which makes it possible to consider the dynamics of input vectors. In the proposed scheme, a linear transformation is applied to the consecutive input vectors and the resulting vector is quantized with a distortion measure defined by the statistics. At the decoder side, the output vector sequence is determined using the statistics associated with the transmitted indices in such a way that a likelihood is maximized. To solve the maximization problem, a computationally efficient algorithm is derived. The performance of the proposed method is evaluated in LSP parameter quantization. It is found that the LSP trajectories and the corresponding spectra change quite smoothly in the proposed method. It is also shown that the use of the proposed method results in a significant improvement of subjective quality.
- 社団法人電子情報通信学会の論文
- 2001-10-01
著者
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Masuko T
Interdisciplinary Graduate School Of Science And Engineering Tokyo Institute Of Technology:(present
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Masuko Takashi
近畿大学 薬学部細胞生物学
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Tachibana Makoto
Interdisciplinary Graduate School Of Science And Engineering Tokyo Institute Of Technology:(present
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Masuko Takashi
Laboratory Of Cell Biology School Of Pharmaceutical Sciences Kinki University
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Masuko Takashi
Departments Of Molecular Biology Pharmaceutical Institute Tohoku University
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Masuko Takashi
Department Of Agricultural And Biological Chemistry College Of Bioresource Sciences Nihon University
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Tokuda K
Department Of Computer Science And Engineering Nagoya Institute Of Technology
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Masuko Takashi
Tokyo Inst. Technol. Yokohama‐shi Jpn
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KOBAYASHI Takao
Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology
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KOISHIDA Kazuhito
the Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology
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TOKUDA Keiichi
the Department of Computer Science, Nagoya Institute of Technology
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MASUKO Takashi
the Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology
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KOBAYASHI Takao
the Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology
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Kobayashi Takao
Tokyo Inst. Technol. Yokohama‐shi Jpn
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Tokuda Keiichi
The Department Of Computer Science Nagoya Institute Of Technology
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Tachibana Makoto
Interdisciplinary Graduate School Of Science And Engineering Tokyo Institute Of Technology
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Kobayashi T
Interdisciplinary Graduate School Of Science And Engineering Tokyo Institute Of Technology
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Matsuyama Taiji
Department Of Pharmacy Shizuoka Kousei Hospital
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Tokuda Keiichi
Department Of Computer Science Naogya Institute Of Technology
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Koishida Kazuhito
The Interdisciplinary Graduate School Of Science And Engineering Tokyo Institute Of Technology:signa
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Kobayashi Takao
Department Of Obstetrics And Gynecology Hamamatsu University School Of Medicine
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- FOREWORD
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