一种语音编码自适应预测声码器的matlab仿真
一种语音编码自适应预测声码器的matlab仿真(课题说明书,开题报告,中期检查表,论文9000字)
摘 要 本文介绍一种基于自适应预测编码(APC)的声码器。开始我们对语音编码技术做一个大体的分析,然后再通过语音编码原理,低频率语音编码技术,做进一步的讲解,之后,研究语音编码的属性,然后,研究编码激励线性预测编码,这是一种近10年来最成功的语音编码系统,通过语音增强可以有效抑制各种干扰信号,增强目标语音信号。最后介绍声码器运行原理及三种样式的声码器,以及运行程序及实验结果。
关键词 语音编码; 低频率语音编码; 编码激励线性预测编码
Matlab simulation of a speech coding adaptive predictive vocoder
AbstractThis paper introduces a vocoder based on adaptive predictive coding (APC). Firstly, we make a big analysis of speech coding technology, and then, through the principle of speech coding and low frequency speech coding technology, we give a further explanation.Then, we study the attributes of speech coding. Finally, we study the coded excitation linear predictive coding, which is the most successful speech coding system in recent 10 years. Through speech enhancement, we can effectively suppress various interference signals and enhance the target speech signal. [资料来源:http://doc163.com]
Keywords Speech Coding;Low Frequency Speech Coding;Excited Linear Predictive Coding
[资料来源:http://doc163.com]
目录
摘要及关键词1
1 前言1
2语音编码关键技术概述1
3语音编码原理3
3.1语音编码原理 3
3.2语音经典编码模型4
3.3自适应预测编码(APC)5
3.4经典音频编码:ISO7
4 一种CELP声码器8
5编码激励线性预测编码8
6 语音编码器8
6.1语音编码器的属性8
6.2声码器模型9
7 语言编码的实现部分10
7.1语音编码设计流程10
7.2语音编码的程序实现11
8语音编码的运行结果12
9总结12
参考文献14
致谢17