The present disclosure relates to an active acoustic control system comprising: a first sensor arrangement arranged to sense an acoustic signal in the region of an object, the acoustic signal having a scattered acoustic pressure component and a total acoustic pressure, the first sensor arrangement being arranged to sense the total acoustic pressure of the acoustic signal; a processor configured to: apply a filter to filter the total acoustic pressure and provide a filtered output signal; and estimate the scattered acoustic pressure component based on the filtered output signal from the filter; and a control source arrangement operable to control the scattered acoustic pressure component based on the estimation and a regularisation parameter determined based on a relationship between: level of control of the scattered acoustic pressure component of the acoustic signal when controlled using the control source arrangement of the system using a set of test regularisation parameters.
ACTIVE ACOUSTIC CONTROL SYSTEMS
AKTIVE AKUSTISCHE STEUERUNGSSYSTEME
SYSTÈMES DE CONTRÔLE ACOUSTIQUE ACTIFS
2023-10-18
Patent
Electronic Resource
English