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JP2011123330A Device and method for controlling active noise 有权
标题翻译：用于控制主动噪声的装置和方法
公开(公告)号：JP2011123330A
公开(公告)日：2011-06-23
申请号：JP2009281391
申请日：2009-12-11
申请人： Kajima Corp , Redec:Kk , 株式会社リデック , 鹿島建設株式会社
发明人： YAIRI MIKINORI , AWATA MASATAKE
IPC分类号： G10K11/178
摘要： PROBLEM TO BE SOLVED: To provide an active noise control device and an active noise control method, for maintaining a spatial area which gives a silence effect with its size reduced. SOLUTION: The active noise control device includes: a reference microphone 11 for detecting noise; a control speaker 13 for outputting a control sound; a near field characteristic detecting microphone 12 arranged in parallel with the control speaker 13; a circuit K1 for identifying a first transfer characteristic T n ; a circuit K2 which calculates a characteristic C m from the control speaker 13 to a near characteristic detection microphone 12, according to the first transfer characteristic T n , a second transfer characteristic T f and a second error characteristic C f , and which constitutes a control filter W for reducing noise in a control area by performing phase interference between the control sound and the noise, according to the first transfer characteristic Tn and the characteristic C m ; and a circuit K3 for controlling a control sound of the control speaker 13, on the basis of a detection result of the reference microphone 11 and the control filter W. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种主动噪声控制装置和主动噪声控制方法，用于保持在其尺寸减小时产生静音效果的空间区域。解决方案：有源噪声控制装置包括：用于检测噪声的参考麦克风11; 用于输出控制声音的控制扬声器13; 与控制扬声器13并联布置的近场特性检测麦克风12; 用于识别第一传递特性T n 的电路K1; 根据第一传送特性T n 从控制扬声器13计算到特性检测麦克风12的特性C m 的电路K2，第二传送特性T f 和第二误差特性C f ，并且其构成用于通过执行控制声音和噪声之间的相位干扰来减少控制区域中的噪声的控制滤波器W. 到第一传递特性Tn和特征C m ; 以及基于参考麦克风11和控制滤波器W的检测结果来控制控制扬声器13的控制声音的电路K3。（C）2011，JPO＆INPIT

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