| AMR-WB编码算法研究和复杂度分析 |
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| 引用本文： | 范锦秀,赵欢,张波涛.AMR-WB编码算法研究和复杂度分析[J].电声技术,2009,33(7):68-72. |
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| 作者姓名： | 范锦秀 赵欢 张波涛 |
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| 作者单位： | 湖南大学,计算机与通信学院,湖南,长沙,410012;国防科技大学,计算机学院,湖南,长沙,410073 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 随着通用DSP性能的不断提升，通过软件实现AMR—WB等各种计算密集型媒体应用成为可能。首先研究了AMR-WB语音编码中采用的基本原理；然后采用YHFT-DSP/700模拟器详细分析了各种编码模式下各模块的计算复杂度，并给出每个模块所需的输入输出缓冲和访存带宽大小，为AMR—WB在通用DSP上的优化提供了指导。
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| 关 键 词： | 数字信号处理 语音编码 AMR-WB 复杂度分析 |
Research on AMR-WB Speech Coding and Its Complexity |
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| FAN Jin-xiu,ZHAO Huan,ZHANG Bo-tao.Research on AMR-WB Speech Coding and Its Complexity[J].Audio Engineering,2009,33(7):68-72. |
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| Authors: | FAN Jin-xiu ZHAO Huan ZHANG Bo-tao |
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| Institution: | FAN Jin-xiu1,ZHAO Huan1,ZHANG Bo-tao2(1.School of Computer and Communication,Hunan University,Changsha 410012,China,2.School of Computer,National University of Defense Technology,Changsha 410073,China) |
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| Abstract: | With the development in the performance of the general DSP,it becomes possible to implement compute-intensive media application such as AMR-WB with software.The principle of the AMR-WB speech coding algorithm is studied first.Then the computation complexity of the each module under all modes by using YHFT-DSP/700 emulator is analyzed in detail and the requirement of I/O buffer and memory bandwidth is presented.The research work provides guidance for optimization of the AMR-WB speech coding algorithm based o... |
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| Keywords: | AMR-WB |
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