Active acoustic attenuation system with reduced convergence...

Details Active acoustic attenuation system with reduced convergence... Active acoustic attenuation system with reduced convergence...

G - Physics

11

B

179/5

G11B 20/24 (2006.01) G10K 11/178 (2006.01) H03H 21/00 (2006.01)

Patent

CA 2033677

ABSTRACT A method is provided for reducing convergence time of an active acoustic attenuation system upon start-up or upon a given sensed parameter change. The weights of the adaptive filter model coefficient weight vector are started at or changed to values which are closer to the converged value than the initial or present nonconverged value is to the converged value. The filter model converges in a shorter time as the weights change and are updated from their starting or changed value to the converged value.

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