| 基于TMS320DM642麦克风阵列声源定位系统 |
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| 引用本文： | 李致金,乔杰.基于TMS320DM642麦克风阵列声源定位系统[J].测控技术,2011,30(1):35-38. |
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| 作者姓名： | 李致金 乔杰 |
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| 作者单位： | 南京信息工程大学电子与信息工程学院; |
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| 基金项目： | 南京信息工程大学基金资助项目(20080326) |
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| 摘 要： | 麦克风声源定位是利用麦克风阵列拾取语音信号,并用数字信号处理技术对其进行分析和处理的声源定位技术.在麦克风阵列声源定位中,语音信号端点的拾取是重要的环节.语音端点检测是对接收到的信号利用端点检测算法分析,以确认麦克风阵列中语音信号到达的端点;并利用麦克风阵列中各麦克风接收到的语音信号的端点的先后,计算出麦克风阵列接收的...
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| 关 键 词： | 声源定位 麦克风阵列 TMS320DM642 端点检测 |
The System of Sound Source Localization by Microphone Array Based on TMS320DM642 |
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| LI Zhi-jin,QIAO Jie.The System of Sound Source Localization by Microphone Array Based on TMS320DM642[J].Measurement & Control Technology,2011,30(1):35-38. |
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| Authors: | LI Zhi-jin QIAO Jie |
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| Affiliation: | LI Zhi-jin,QIAO Jie(College of Electronic & Information Engineering,Nanjing University of Information Science & Technology,Nanjing 210044,China) |
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| Abstract: | Sound source location system based on microphone array collects the sound signal by microphone array.TLV320AIC23B converts analog sound signal to digital signal.TMS320DM642 analyses the digital sound signal and detects the endpoints of the sound signal to the microphone.The endpoint detection is one of the important factors to determine the precision of this system.Because the distance between sound source and one microphone of the microphone array,the time tij indicates the time interval of sound from micr... |
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| Keywords: | sound source localization microphone array TMS320DM642 endpoint detection |
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