This paper deals with the entirely local active power absorption method. A theoretical and practical approach is discussed. The results show that only at resonances the method of maximum power absorption can lead to a global attenuation. To verify the first results further test series have to be made. Measurements using an intensity sensor can lead to better methods to improve calibration of the phase correction. Next steps will lead to researches on varying the impedances of the secondary source to achieve other effects, e.g. free field impedance.
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