A 16kb/s Wideband CELP-Based Speech Coder Using Mel-Generalized Cepstral Analysis
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概要
- 論文の詳細を見る
We propose a wideband CELP-type speech coder at 16kb/s based on a mel-generalized cepstral(MGC)analysis technique. MGC analysis makes it possible to obtain a more accurate representation of spectral zeros compared to linear predictive(LP) analysis and take a perceptual frequency scale into account. A major advantage of the proposed coder is that the benefits of MGC representation of speech spectra can be incorporated into the CELP coding process. Subjective tests show that the proposed coder at 16kb/s achieves a significant improvement in performance over a 16kb/s conventional CELP coder under the same coding framework and bit allocation. Moreover, the proposed coder is found to outperform the ITU-T G.722 standard at 64kb/s.
- 社団法人電子情報通信学会の論文
- 2000-04-25
著者
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Tokuda K
Department Of Computer Science And Engineering Nagoya Institute Of Technology
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Tokuda Keiichi
The Authors Are With The Nagoya Institute Of Technology
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KOBAYASHI Takao
Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology
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KOBAYASHI Takao
The authors are with the Department of Information Processing, Interdisciplinary Graduate School of
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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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Kobayashi T
Interdisciplinary Graduate School Of Science And Engineering Tokyo Institute Of Technology
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KOISHIDA Kazuhito
The authors are with Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute o
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HIRABAYASHI Gou
The authors are with Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute o
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Hirabayashi Gou
The Authors Are With Interdisciplinary Graduate School Of Science And Engineering Tokyo Institute Of
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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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Hirabayashi Go
The authors are with Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology
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TOKUDA Keiichi
The author is with the Department of Computer Science, Nagoya Institute of Technology
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