Active noise control systems for open windows: current updates and future perspectives

Lam, Bhan, Shi, Chuang and Gan, Woon-Seng (2017) Active noise control systems for open windows: current updates and future perspectives. In 24th International Congress on Sound and Vibration. International Institute of Acoustics and Vibration. pp. 827-833 .

Record type: Conference or Workshop Item (Paper)

Abstract

Active noise control (ANC) is currently being explored as a potential solution for controlling noise that propagates through an open window. The main motivation of this technique is to provide acoustic insulation via active means, while preserving the natural ventilation properties of the open window. The feasibility of such an open-window ANC system is first discussed using numerical methods. To validate the numerical studies, we developed a full-scale model of a small bedroom with a two-panel sliding window, which is identical to those installed in public housing apartments in Singapore. The ANC system is installed at the opening of the sliding window. From the experimental results, the limitations of the current system and potential solutions are discussed. Lastly, the practical implementation challenges and suggested solutions of the proposed open-window ANC system are also highlighted.

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