We proposed the frequency analysis type adaptive algorithm in order to control the siren sound of the ambulance. The effectiveness of this algorithm was experimentally demonstrated. However, because this algorithm used the LMS algorithm by which the step-size-parameter can take only the scalar value, the step-size parameter of each frequency component could not be changed. So, it is difficult to control the periodicity noise in the duct that contains a lot of harmonics in the noise. In this paper, the frequency analysis type adaptive algorithm used the fixed matrix gain is proposed, and the effectiveness was experimentally demonstrated by applying the control of the periodicity noise in the duct.
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