| 话音回波抵消器的研究 |
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| 引用本文： | 高振明,史文涛.话音回波抵消器的研究[J].山东大学学报(理学版),1991(1). |
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| 作者姓名： | 高振明 史文涛 |
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| 作者单位： | 山东大学电子工程系，山东财政学院 |
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| 摘 要： | 给出了话音回波抵消技术的原理和参数选择准则.利用大规模集成电路-单片数字信号处理器TMS32020和话音编译码器MC14403,完成了128抽头的全数字话音回波抵消器的技术研究,详细讨论了TMS32020话音回波抵消器实现过程中所遇到的问题和相应的解决方法.
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| 关 键 词： | 回波抵消器 自适应滤波器 抽头系数 自适应算法 双端抢话检测器 |
THE RESEARCH OF THE VOICE ECHO CANCELLER |
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| Gao Zhenming, Shi Wentao Dept. of Electronic. Eng.,Shandong Univ.,Jinan.THE RESEARCH OF THE VOICE ECHO CANCELLER[J].Journal of Shandong University,1991(1). |
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| Authors: | Gao Zhenming Shi Wentao Dept of Electronic Eng Shandong Univ Jinan |
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| Abstract: | The principles of the voice echo canceller technologies and the criteria of choosing parameters are given in the paper. The VLSI single DSP (Digital signal Processor) chip TMS32020 and voice codec MC14403 are used in the research. The technological realization of such full digital voice echo canceller with 128 taps has performed, meanwhile, the problems in the realization and the corresponding keys were also discussed in detail. |
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| Keywords: | echo canceller adaptive filter tap coeffiecient adaptive algorithm double talking detector |
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