公开(公告)号：KR101442700B1

公开(公告)日：2014-09-23

申请号：KR1020130105730

申请日：2013-09-03

Applicant: 서강대학교산학협력단

Inventor： 박형민 ,  임동현 ,  김민욱

IPC: H04R3/04 ,  H04R1/10

CPC classification number: H04R3/04 ,  H04R1/1083 ,  H04R2410/05

Abstract: A noise cancelation apparatus for headphones using an independent component analysis adaptive filter includes; an external microphone installed at an outside of the headphones and to receive an external noise; a feedforward adaptive filter using independent component analysis which receives a noise signal output from the external microphone to perform the convolution for an adaptive filter coefficient using the noise signal as a reference signal for generating an attenuation signal; a subtracter which subtracts the attenuation signal from a target signal provided from the outside; and an error microphone installed inside the headphones. An output signal is outputted through a speaker of the headphones. The adaptive filter coefficient is learned by receiving an error signal from the error microphone to minimize a component which is not correlated to each other between the target signal and the noise signal.

Abstract translation: 使用独立分量分析自适应滤波器的耳机噪声消除装置包括： 安装在耳机外部并接收外部噪声的外部麦克风; 使用独立分量分析的前馈自适应滤波器，其接收从外部麦克风输出的噪声信号，以使用噪声信号作为用于产生衰减信号的参考信号来执行自适应滤波器系数的卷积; 从外部提供的目标信号中减去衰减信号的减法器; 并安装在耳机内的错误麦克风。 通过耳机的扬声器输出输出信号。 通过从误差麦克风接收误差信号来学习自适应滤波器系数，以使在目标信号和噪声信号之间彼此不相关的分量最小化。