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And active noise reduction device, device using active noise reduction system, and the active noise reduction system using the same, as well as active noise reduction method
And active noise reduction device, device using active noise reduction system, and the active noise reduction system using the same, as well as active noise reduction method
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机译:以及主动降噪装置,使用主动降噪系统的装置以及使用该装置的主动降噪系统,以及主动降噪方法
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摘要
PROBLEM TO BE SOLVED: To provide an active noise reduction device satisfying both of stability of an adaptive filter and high convergence speed.SOLUTION: A control block selects two or more pieces of device information data from a storage on the basis of a piece of device information, and generates the contribution ratio of two or more filter coefficients in a cancel signal on the basis of the two or more pieces of device information data and the device information. An ADF block adjusts the contribution degree of the filter coefficients in the cancel signal on the basis of the generated contribution ratio. Therefore, since the ADF block generates a cancel signal in accordance with the contribution ratio determined by the control block, noises can be reduced even when the device information is changed.
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