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《Electronic Technology》 2012-01
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A Long-range Sound Pickup Device of Video Positioning

Zhu Yunhai Yu Jie Xu Hongming(NingBo 3D Technology Co.,Ltd.)  
This paper proposes a long-range sound pick-up device of video positioning,which can effectively strengthen the quality of given target audio source of video monitoring image,supress the infenrence and noice of near-field audio source,simplify post noice-reduction processing,and feasures easy to install and use.It consists of directional microphone,omnidirectional microphone,horn-shape barrel body,main signal accumulation unit,noise accumulation unit,post signal processing unit,and under the bottom of each horn shap barrel body a directional microphne and a omnidirectional microphne are mounted.The post signal processing unit is used to carry out substration processing obtaining target audio1signal.The opening of the horn shape barrel body is oriented to target audio source and mounted the circumference which takes camara as the center.This device has been applied for China's patent.
【CateGory Index】: TN912.3
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