The "anti-noise control window" is designed to stop urban sound pollution in its tracks
The system uses a microphone outside the window to detect the repeating sound waves of the offending noise source, which is registered by a computer controller. That in turn deciphers the proper wave frequency needed to neutralize the sound, which is transmitted to the array of speakers on the inside of the window frame.A team of researchers at Nanyang Technological University in Singaporeled by Masaharu Nishimura and Bhan Lam have developed a prototype approach that can decrease the amount of urban noise that infiltrates a dwelling. The grid of circular speakers is installed within the open window frame and filters out constant sounds of a certain frequency. It has yet to be perfected to block out sporadic and low-pitched sounds, however.
The system uses a microphone outside the window to detect the repeating sound waves of the offending noise source, which is registered by a computer controller. That in turn deciphers the proper wave frequency needed to neutralize the sound, which is transmitted to the array of speakers on the inside of the window frame.
A team of researchers at Nanyang Technological University in Singaporeled by Masaharu Nishimura and Bhan Lam have developed a prototype approach that can decrease the amount of urban noise that infiltrates a dwelling.
The grid of circular speakers is installed within the open window frame and filters out constant sounds of a certain frequency. It has yet to be perfected to block out sporadic and low-pitched sounds, however.
