Active attenuation system with specified output acoustic wave

Details Active attenuation system with specified output acoustic wave Active attenuation system with specified output acoustic wave

H - Electricity

04

R

H04R 3/00 (2006.01) G10K 11/178 (2006.01)

Patent

CA 2055108

An active acoustic attenuation system speci- fies the error signal (44) to correspondingly specify the output acoustic wave. In the preferred embodiment, the error signal (44) is specified by summing (210) the error signal (44) with a desired signal (204) to provide a specified error signal (206) to the error input (202) of the adaptive filter model (40) such that the model (40) outputs the correction signal (46) to the output trans- ducer (14) to introduce the canceling acoustic wave which specifies the output acoustic wave such that a desired signal is present in the output acoustic wave.

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