| AMR声码器研究及其基于C6000的多通道实现 |
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| 引用本文： | 任晓燕,陈新富. AMR声码器研究及其基于C6000的多通道实现[J]. 电声技术, 2003, 0(2): 51-56 |
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| 作者姓名： | 任晓燕 陈新富 |
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| 作者单位： | 空军工程大学电讯工程学院,陕西,西安,710068;空军工程大学电讯工程学院,陕西,西安,710068 |
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| 摘 要： | 对WCDMA的语音编码标准－AMR声码器中的算法进行了分析和研究,重点探讨了各个算法的特点及其理论依据,并实现了基于TMS320C6000系列芯片的多通道AMR声码器。仿真结果与3GPP提供的结果满足比特精确要求;实时处理的非正式主观测试表明,合成语音质量优于GSM的RPE－LTP的语音质量。
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| 关 键 词： | AMR声码器 码激励线性预测 第三代移动通信 源控速率 语音激活检测 误码消除 相位弥散 |
| 修稿时间： | 2002-09-22 |
Study on AMR vocoder and its multi-channel implementation based on TMS320 C6000 |
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| REN Xiao-yan,CHEN Xin-fu. Study on AMR vocoder and its multi-channel implementation based on TMS320 C6000[J]. Audio Engineering, 2003, 0(2): 51-56 |
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| Authors: | REN Xiao-yan CHEN Xin-fu |
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| Abstract: | This paper presents the speech coding algorithms in the WCDMA-AMR vocoder with emphasis on their novel characteristics, theoretical foundations and its multi-channel implementation based on the TMS320C6000. Simulation results is identical,bit by bit,to the test sequences provided by 3GPP. Quality of the synthetic speech of the real time hardware is superior to that of the RPE-LTP by some informal listening tests. |
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| Keywords: | AMR vocoder code-excited linear prediction 3G mobile communication source controlled rate voice activity detector error concealment phase dispersion |
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