An Active Noise Control System for Reducing Siren Noise Inside the Ambulance

Siren noise constitutes a nuisance and could be harmful for ambulance personnel and patients. Several studies proposed simulated Active Noise Control (ANC) solutions to attenuate siren noise inside an ambulance. In this paper an implementation of a feedforward ANC system based on the classic FxLMS algorithm is presented, running it on a real-time hardware platform to test the efficacy of such solution in a laboratory environment. Algorithms are developed in MATLAB Simulink environment, and run on Speedgoat target hardware. The results of these experiments are presented, and while discussing our findings, the experienced limitations are described, and further work is suggested.