| G.723.1语音编解码算法分析及优化 |
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| 引用本文： | 吴欣茹,徐隽.G.723.1语音编解码算法分析及优化[J].科学技术与工程,2010,10(7). |
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| 作者姓名： | 吴欣茹 徐隽 |
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| 作者单位： | 1. 西安工业大学北方信息工程学院,西安,710025
2. 西安傲林软件有限公司,西安,710075 |
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| 摘 要： | 在分析了G.723.1双速率语音编解码算法的基础上,针对ARM11处理器的特性,对G.723.1定点标准C代码进行了算法和语言级的优化,使得实时编解码成为可能。通过测试表明,优化过的代码比原始代码效率提高了74%—90%,所使用到的优化方法切实可行。
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| 关 键 词： | G.723.1 语音编码 优化 |
| 收稿时间： | 2009/9/14 0:00:00 |
| 修稿时间： | 1/28/2010 1:47:29 PM |
Analysis and Optimization of G.723.1 Speech Codec Algorithm |
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| Wu Xin Ru and Xu Jun.Analysis and Optimization of G.723.1 Speech Codec Algorithm[J].Science Technology and Engineering,2010,10(7). |
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| Authors: | Wu Xin Ru and Xu Jun |
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| Institution: | WU Xin-ru,XU Jun1 |
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| Abstract: | This paper analyzes the encoding and decoding algorithm of G.723.1 dual-rate speech codec. Based on the ARM11 processor, several methods are used to optimize the fixed-point standard C code of G.723.1. These methods make the real-time encoding and decoding become possible. The test results show that the efficiency of the optimized code is increased by 74%-90% compared with that of the original one, and the optimization methods used are feasible. |
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| Keywords: | G 723 1 speech coding optimization |
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