| 浮点iLBC语音编码算法的定点DSP实现 |
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| 引用本文： | 郑国宏,陈亮,程剑,晋军.浮点iLBC语音编码算法的定点DSP实现[J].军事通信技术,2008(3). |
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| 作者姓名： | 郑国宏 陈亮 程剑 晋军 |
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| 作者单位： | 解放军理工大学通信工程学院电子信息工程系;解放军理工大学通信工程学院卫星通信系; |
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| 摘 要： | 简要介绍了iLBC语音编码算法的基本原理。详细描述了将iLBC浮点算法转换为定点算法并移植到定点DSP上的方法。比较了转换后的iLBC定点算法与ITU-T G.729A,G.723.1的复杂度,给出了转换后的定点算法与浮点算法的PESQ得分情况。
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| 关 键 词： | 语音编码 定点算法 浮点算法 |
Implementation of iLBC Speech Coding Algorithm Based on Fixed-point DSP |
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| ZHENG Guo-hong,CHEN Liang,CHENG Jian,JIN Jun.Implementation of iLBC Speech Coding Algorithm Based on Fixed-point DSP[J].Journal of Military Communications Technology,2008(3). |
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| Authors: | ZHENG Guo-hong CHEN Liang CHENG Jian JIN Jun |
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| Institution: | ZHENG Guo-hong1,CHEN Liang1,CHENG Jian2,JIN Jun2(1.Department of Electronic Information Engineering ICE,PLAUST,Nanjing 210007,China,2.Department of Satellite Communication ICE,PLAUST) |
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| Abstract: | The principle of iLBC speech coding algorithm was briefly introduced.The method to convert iLBC float point algorithm into fixed-point algorithm and to migrate the iLBC fixed-point algorithm to fixed-point DSP was described in detail.Finally,the complexity of iLBC fixed-point algorithm was compared with ITU-T G.729A,G.723.1 and the PESQ score of iLBC fixed-point algorithm and float point algorithm was presented. |
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| Keywords: | speech coding fixed-point algorithm float-point algorithm |
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