Noise cancelling device halves noise pollution through open windows (NTU)

Sometimes there's nothing like a nice breeze from an open window, but in the city that can come with an unwanted side order of street noise. Inspired by the kind of noise-canceling tech used in headphones, researchers at Nanyang Technological University, Singapore (NTU) have developed a window-based system that can actively cut noise coming from outside. (…)

http://media.ntu.edu.sg/NewsReleases/Pages/newsdetail.aspx?news=9f9b733e-44fc-45b4-9c07-436fe65c1017 (dead link)

Fixed link (2024) https://www.ntu.edu.sg/eee/news-events/news/detail/-noise-cancelling-device-by-ntu-eee-scientists-halves-noise-pollution-through-open-windows

On a very much related topic, see also what DeNoize is developing https://denoize.com/

DeNoize can transform any glass window into a smart system by adding our  active noise canceling technology to it. Trough this we enable the  future of real-estate with higher comfort and a healthier living  environment.