Harmonic Model Based Excitation Enhancement for Low-Bit-Rate Speech Coding(Speech and Hearing)
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概要
- 論文の詳細を見る
A new excitation enhancement technique based on a harmonic model is proposed in this paper to improve the speech quality of low-bit-rate speech coders. This technique is employed only in the decoding process of speech coders and improves high-frequency components of excitation. We develop the procedure of harmonic model parameters estimation and harmonic generation and apply the technique to a current state-of-art low bit rate speech coder. Experiments on spectrum reading and spectrum distortion measurement show that the proposed excitation enhancement technique improves speech quality.
- 社団法人電子情報通信学会の論文
- 2004-07-01
著者
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KIM Hong
Department of Physiology, College of Medicine, Kyung Hee University
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Kwon C
Daejeon University
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Kwon Chul
Daejeon Univ.
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Kim Hong
Department Of Chemistry Advanced Materials Chemistry Research Center Korea University
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LEE Mi
Broadband Convergence Network Research Division, Electronics and Telecommunications Research Institu
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Lee Mi
Broadband Convergence Network Research Division Electronics And Telecommunications Research Institut
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