We discuss the implementation and the performance of an active road noise control system. We review the design of a system based on the Least Mean Square (LMS) adaptive algorithm, suitable for the wideband road noise reduction inside a car cabin. As the system is based on a feedforward control approach, we discuss the method for the selection of the sensors providing the best noise reference signals. We then give a computational complexity analysis of the overall system and discuss the system implementation into a prototype hardware for a mid-size sedan. Performance are then evaluated on different road noise scenarios in real driving situations.

Authors: Tripodi, Carlo; Costalunga, Alessandro; Ebri, Lorenzo; Vizzaccaro, Marco; Cattani, Luca; Ugolotti, Emanuele; Nili, Tiziano
Affiliations: University of Parma, Parma (PR), Italy; ASK Industries SPA, Montecavolo di Quattrocastella (RE), Italy(See document for exact affiliation information.)
AES Convention: 144 (May 2018) Paper Number: 9976
Publication Date: May 14, 2018
Subject: Measurements

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