| 一种车载语音回声消除的方案设计 |
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| 引用本文： | 陈如飞,姜立标,杨楚锐.一种车载语音回声消除的方案设计[J].机械与电子,2021,39(2):25-29. |
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| 作者姓名： | 陈如飞 姜立标 杨楚锐 |
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| 作者单位： | 华南理工大学机械与汽车工程学院,广东广州510640;华南理工大学机械与汽车工程学院,广东广州510640;华南理工大学机械与汽车工程学院,广东广州510640 |
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| 摘 要： | 为提高车载语音语音唤醒率，定位准确率和文字识别率，基于XF6020SYE芯片设计了一种车载语音的回声消除方案，阐述了该模块配合车载信息娱乐系统的工作过程，回声消除的工作原理。再通过对麦克风要求的评估，选择符合车载语音使用条件的麦克风，同时根据汽车内部结构合理布置麦克风。最后经过实车录音采样分析对比XF6020SYE处理前后的音轨，结合实车测试比较回声消除和降噪前后的语音唤醒率，定位准确率和文字识别率，得出结论证实所设计的方法有效可行。
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| 关 键 词： | 车载语音 车载信息娱乐系统 回声消除 麦克风 参考信号 |
A Scheme Design of Vehicle Voice Echo Cancellation |
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| CHEN Rufei,JIANG Libiao,YANG Churui.A Scheme Design of Vehicle Voice Echo Cancellation[J].Machinery & Electronics,2021,39(2):25-29. |
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| Authors: | CHEN Rufei JIANG Libiao YANG Churui |
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| Affiliation: | School of Mechanical and Automotive Engineering,South China University of Technology,Guangzhou 510640,China |
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| Abstract: | In order to improve the vehicle voice wake-up rate,positioning accuracy and text recognition rate,this paper designs a vehicle voice echo cancellation scheme based on the XF6020SYE chip,and explains the working process of the module with the vehicle infotainment system and the working principle of echo cancellation.Then through the evaluation of the microphone requirements,select the microphone that meets the conditions for the use of vehicle voice is selected,and reasonably arranged according to the internal structure of the car.Finally,after real car recording sampling analysis and comparison of the audio tracks before and after XF6020SYE processing,combined with real car testing to compare the voice wake rate before and after echo cancellation and noise reduction,positioning accuracy and text recognition rate,it is concluded that the method designed in this paper is effective and feasible. |
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| Keywords: | car voice car infotainment system echo cancellation microphone reference signal |
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