| 语声中速率多脉冲压缩编码的新方法 |
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| 引用本文： | 朱琦,徐思均,管叙涛.语声中速率多脉冲压缩编码的新方法[J].南京邮电大学学报(自然科学版),1990(1). |
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| 作者姓名： | 朱琦 徐思均 管叙涛 |
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| 作者单位： | 南京邮电学院无线电工程系，南京邮电学院无线电工程系，南京邮电学院无线电工程系 |
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| 摘 要： | 目前,出现了许多新的语音压缩编码技术,其中多脉冲线性预测编码由于考虑了人耳的听觉效应,利用谱逼近准则寻优,获得了良好的语声编码听音效果,因而在中速率语声编码方法中颇受人们重视。本文对多脉冲编码方案提出了几种新的改进方法:去帧间影响效应、残差的峰值逼近多脉冲的方法,线性预测参数的二次寻优、二级多脉冲激励模型法,文献中自相关法公式的修正等。最后给出了实验结果。
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| 关 键 词： | 语言处理 预测 脉冲压缩编码 |
New Method of Intermediate Rate Multi-Pulse Compression Coding for Speech |
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| Zhu Qi Xu Sijun Guan Xutao.New Method of Intermediate Rate Multi-Pulse Compression Coding for Speech[J].Journal of Nanjing University of Posts and Telecommunications,1990(1). |
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| Authors: | Zhu Qi Xu Sijun Guan Xutao |
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| Institution: | Department of Radio Engineering |
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| Abstract: | At present, many new techniques of speech compression coding have come forth, in which multl-pulse linear prediction coder (MPLPC)algorithm has been paid extensive attention to for its good clearness. This paper will show several new advances of MPLPC for obtaining better performance. They include: the removal of the affection between two adjacent frames, the searching for a few pulses from the residual error, the recursive optimization of LPC parameters, a new two-stage model of MPLPC and the modification of the autocorrelation formula in 3]. Finally, simulation results are given. |
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| Keywords: | Speech processing Prediction Pulse compression coding |
| 本文献已被 CNKI 等数据库收录！ |
