| 改进的繁殖码激励线性预测编码器 |
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| 引用本文： | 鲍长春,赵国谦,戴逸松.改进的繁殖码激励线性预测编码器[J].吉林大学学报(信息科学版),1994(1). |
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| 作者姓名： | 鲍长春 赵国谦 戴逸松 |
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| 作者单位： | 长春邮电学院电信工程系，吉林工业大学 |
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| 摘 要： | 尽管码激励线性预测编码（ＣＥＬＰ）算法在中、低比特速率中已提供了较好的语音质量，但对随机码本的全搜索，其计算是极其复杂的。本文在繁殖码激励线性预测编码器的基础上研究了决定最优激励的全搜索过程，提出了用改进的繁殖码本作为激励源的有效搜索方法，使ＣＥＬＰ编码器的计算量减少为正常全搜索的。
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| 关 键 词： | 语声处理，声码器／线性预测编码 |
Improved populating code-excted linear predictive coder |
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| Bao Changchun,Zhao Guoqian,Dai Yisong.Improved populating code-excted linear predictive coder[J].Journal of Jilin University:Information Sci Ed,1994(1). |
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| Authors: | Bao Changchun Zhao Guoqian Dai Yisong |
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| Abstract: | Although CELP(code-excited linear predictive)coding has provided good quality synthetic speech at medium and low bit raes , the computation of an exhaustive search for stochastic codebook is extremely complex. This paper on the basis of populating code-excited linear predictive coder studies the exhaustive search procedure for deter-mining the optimum excitation,and develops an effective search methed by using im-proved populating codebook as excitation source. The computational cost of CELP coder was reduced to 1/26 that of a conventional full-gaussian codebook search. |
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| Keywords: | speech processing vocoder linear prediction |
| 本文献已被 CNKI 等数据库收录！ |
