Ten questions concerning active noise control in the built environment

Urban noise pollution is an omnipresent but often neglected threat to public health that must be addressed urgently. Passive control measures, which are less effective at reducing low-frequency and bulky may impede airflow. As evidenced in automobiles, active of cabin has resulted lighter cars due reduced passive insulation. Despite its long history recent popularisation by consumer headphones, the implementation built environment still rare. To date, (ANC) been demonstrated, source, construction machines and, transmission path, barriers. Recent demand for naturally-ventilated buildings also spurred development solutions receiving end, such as on windows. The ten questions aim demystify principles ANC highlight areas environmental can actively mitigated. Since usually involves multiple stakeholders, operational concerns addressed. conclude, research gaps identified would enable increased adoption environment. There renewed interest applying intelligent tackle environmentally complex applications, varying levels earcup particularly with advent low-cost, low-power, highly-efficient embedded electronics; advancing speaker technology; new impetus from digital signal processing artificial intelligence Algorithms.