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《Journal of Applied Acoustics》 2020-03
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A new method to detect the sound of computer keyboard

ZHANG Mengyu;WANG Xulong;ZHANG Zhongning;LI Jie;YANG Jing;LIANG Bin;CHENG Jianchun;Institute of Acoustics, Nanjing University;Collaborative Innovation Center of Advanced Microstructures;Suzhou Bangguan Automation Company;  
The traditional sound detection of computer keyboard uses a mute-motor to tap the cap of keyboard.Besides, the process of detection must be in the silent room. The cost of sound detection is very expensive so that it can't be used widely. In this letter, we propose an advanced method to detect the sound of keyboard.First, the electromagnet, which is driven by the analog signal, taps the cap of keyboard. By this way, the process of tapping caps can be perfectly simulated. Then we designed a cavity, which can insulate the background noise effectively. The microphone was placed in the cavity and near by the electromagnet and keyboard, which can improve the signal-noise ratio effectively. The proposed design could open up an alternative avenue for the sound detection of computer keyboard.
【Fund】: 国家自然科学基金项目(11374157)
【CateGory Index】: TP334.23;TN641;O42
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【Citations】
Chinese Journal Full-text Database 5 Hits
1 JIN Chun;JIA Zhen-mei;Wireless Transmission Key Laboratory,School of Communication & Information Engineering,Chongqing University of Posts & Telecommunications;Chongqing Jinou Science&Technology Development Co,Ltd;;Finger Tapping Recognition Algorithm Based on Wearable Input System[J];科学技术与工程;2015-01
2 Wu Shaowei;Xiang Yang;Xia Xuebao;Wang Xiaoqing;School of Energy and Power Engineering,Wuhan University of Technology;;Acoustic superposition method in element free spatial discrete domains[J];华中科技大学学报(自然科学版);2013-11
3 JIANG Wei,WANG Dong-hai(Institute of Acoustic Engineering,Northwestern Polytechnical University,Xi'an Shanxi 710072,China);Array Radiation Sound Field Calculation and Beam-Synthesis Based on Wave Superposition Method[J];计算机仿真;2007-08
4 LI Weibing CHEN Jian YU Fei CHEN Xinzhao Institute of Sound and Vibration Research, Hefei University of Technology, Hefei 230009, China;NEAR-FIELD ACOUSTIC HOLOGRAPHY FOR SEMI-FREE ACOUSTIC FIELD BASED ON WAVE SUPERPOSITION APPROACH[J];Chinese Journal of Mechanical Engineering;2006-03
5 LI Weibing CHEN Jian YU Fei CHEN Xinzhao Institute of sound and vibration research,Hefei University of Technology Hefei 230009;Reconstruction and prediction of coherent acoustic field with the combined wave superposition approach[J];Chinese Journal of Acoustics;2006-02
【Co-citations】
Chinese Journal Full-text Database 2 Hits
1 GAO Xiao-ming;YANG Cheng;School of Computer Science and Technology,Southwest University of Science and Technology;;Design of Multiple Ultrasonic Beam Former for Industrial Application[J];化工自动化及仪表;2014-05
2 HU Bo YANG Desen SUN Yu(Science and Technology on Underwater Acoustic Laboratory,Harbin Engineering University,Harbin 150001);Near-field Acoustical Holography with Particle Velocity Based on Measurement of Vector Hydrophone Array[J];机械工程学报;2010-22
【Secondary Citations】
Chinese Journal Full-text Database 5 Hits
1 QIAN Hua-ming1,XIA Quan-xi2,QUE Xing-tao1,ZHANG Qiang1(1.College of Automation,Harbin Engineering University,Harbin 150001,China;2.Institute of Surveying and Mapping,Information Engineering University of PLA,Zhengzhou 450002,China);Algorithm for a MEMS gyroscope based on Kalman filter[J];哈尔滨工程大学学报;2010-09
2 Zhang Yong1 Zhao Chenghong2 Yang Guangyuan1 Shao Keran1(1 College of Electrical and Electronics Engineering,Huazhong University of Science andTechnology,Wuhan 430074,China;2 Wuhan Marine Electric Propulsion Research Institute,Wuhan 430064,China);Solving the problem of electromagnetic convection-diffusion using multiscale combined RBF collocation method[J];华中科技大学学报(自然科学版);2009-12
3 Chen Mei-xia Qiu Chang-lin Luo Dong-ping College of Science and Engineering,Huazhong Univ.of Sci.& Tech.,Wuhan 430074,China);Sound Radiation Analysis of Submerged Cylindrical Shell Excited by Interior Point Source Based on FEM/BEM[J];中国舰船研究;2007-06
4 Miao Yu Wang Yuanhan Jiang Heyang Miao Yu Doctoral Candidate; College of Civil Eng. & Mech.; Huazhong Univ. of Sci. & Tech. , Wuhan 430074, China.;Error analysis with the meshless method[J];华中科技大学学报(自然科学版);2005-01
5 Li Tianyun Liu Jingxi Zhou Jian Li Tianyun Assoc. Prof.;College of Traffic Sci. & Eng., Huazhong Univ. of Sci. & Tech., Wuhan 430074, China.;Sound radiation of unbaffled plate based on Green function[J];华中科技大学学报(自然科学版);2003-04
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