News

"Our lab has successfully developed a cloud-based, AI-augmented urban soundscape as part of the NRF-funded Cities-of-Tomorrow project. This innovative solution utilizes IoT devices installed in gazebos located in parks adjacent to busy streets. These devices transform the aural environment within the gazebos, making it more pleasant and restoring a sense of calm and tranquility amidst the urban noise. The project also goes beyond perceptual validity by introducing several innovations in soundscape feature extraction, developing perceptual prediction models, and creating an extensive dataset of affective responses augmented by urban soundscapes. We collaborated with Amazon Web Services(AWS) to develop an end-to-end IoT device that captures ambient sounds at various sites. This device sends acoustic data to the cloud, where an AI model identifies suitable natural maskers, such as specific bird songs or water sounds. These sounds are then played through in-situ speaker units placed around gazebos. Currently, these IoT devices are deployed at five sites in Singapore, as shown below:"

News on ANC Window

"With rapid urban development, the annoyance and dissatisfaction caused by excessive urban noise is familiar to almost all Singaporeans; the negative health impact is less well known but is nonetheless very significant. Our proposed approach to mitigate traffic noise coming into the residential houses through open window is by first creating a noise map from static and dynamic sound-capture devices(Thrust 1), and analyzing the different noise source characteristics and its impact on human annoyance (Thrust 2). Using this information and in-situ noise acquisition, a perceptual based active noise control with auditory masking system (Thrust 3) is proposed to mitigate traffic noise entering the residential houses through open windows. This proposed system is called the active acoustic shield with masking or abbreviated as A2SM.“

CNN's 'Tech for Good' meets the innovators tackling invisible pollution
Yahoo Finance, 27 July 2022.

Scientists Say You Can Cancel the Noise but Keep Your Window Open
The New York Times , 11 July 2020 and online

[사이언스샷] 소음 막는 스피커 덕분 기찻길옆 아기 잘도 잔다
Naver , 10 July 2020 and online

Noise-cancelling windows halve traffic sounds even when they're open
New Scientist , 9 July 2020 and online

Less noise, even with windows wide open
The Straits Times, 1 May 2018, page B3 (with blurb on page A2) and online (photos provided by CCO)

Device to reduce noise from outside
The Straits Times, 1 May 2018, page B3 (with photos provided by CCO)

NTU device can reduce noise pollution by up to half, targeted for use in 2 to 3 years
The Straits Times online, 30 April 2018

NTU develops a device that can reduce noise pollution when installed on window grilles
Lianhe Zaobao, 1 May 2018, page 8

NTU develops noise cancelling device which can halve the noise pollution even without closing windows
Shin Min Daily News, 30 April 2018, page 10 (with photo provided by CCO)

NTU develops noise cancelling device that when mounted on the window grilles, can halve the noise pollution through open windows
Lianhe Wanbao, 30 Apr, page 4 (with photo provided by CCO)

Device that can cut noise pollution by half developed by NTU researchers
Channel NewsAsia online, 30 April 2018 (includes video interview with Prof Gan Woon Seng)

Locally developed noise cancelling device halves noise pollution
Channel 8 online, 30 April 2018 (includes video interview with NTU researchers)

NTU researchers develop device that halves noise pollution
Berita Mediacorp, 30 April 2018

End to problem of loud neighbours? Scientists create noise-cancelling windows that can reduce sounds by up to 50%, even when left open
The Daily Mail online (UK) (with photos, video and infographics provided by CCO)

Scientists create noise-cancelling windows that can reduce sound by up to 50 per cent
Express Digest (US) (with infographics and photos provided by CCO)

NTU researchers develop technology to reduce noise pollution through open windows
OpenGov, 30 April 2018 (with infographics and photos provided by CCO)

Window that silences your noisy neighbours
The Daily Mail (UK), 1 May 2018, page 25​

Noise-cancelling windows could be the next boom industry
The Times (UK), 1 May 2018​

Sound idea! The window that silences noisy neighbours...
Irish Daily Mail (Ireland), 1 May 2018, page 18

Window that can cut down on noise nuisance...even when it's left open!
The Scottish Daily Mail (Scotland), 1 May 2018, page 5​

Shut out loud neighbours for good! Scientists reveal window which reduces noise pollution by 50%
Yahoo UK, 1 May 2018​

Noise cancelling device halves noise pollution through open windows
TechXplore (US), 1 May 2018 (with infographics provided by CCO)

Prototype Device Aims to Reduce Noise Pollution via Open Windows
World Industrial Reporter (Philippines), 1 May 2018(with video and photo provided by CCO)

Urban dwellers will like the sound of these noise-cancelling windows
NBC News online (US), 2 May 2018 (with infographics and video provided by CCO)

Noise-cancelling windows soften the sounds of the city
New Atlas (US), 2 May 2018 (with photo, video and infographics provided by CCO)

Scientists create noise-cancelling device for buildings
The Fifth Estate (AU), 2 May 2018 (with photo provided by CCO)

Listen up: Device designed to hush exterior noise
ProudGreenBuilding (US), 2 May 2018 (with video provided by CCO)

Noise-Cancelling Windows Are Perfect for People Already Rich Enough To Find Quiet in the City
SciencePage (US), 2 May 2018

Tired of city noise? Noise-cancelling windows might be the answer
Techaeris (US), 2 May 2018 (with photo and video provided by CCO)

Urban dwellers will like the sound of these noise-cancelling windows
Digital Trends, 1 May 2018 (with infographics and video provided by CCO)

New noise-cancelling windows can reduce outdoor sounds even when open
GorgeousFM (US), 2 May 2018 (with photo provided by CCO)

New noise-cancelling windows can reduce outdoor sounds even when open
Sky News (UK), 2 May​ 2018

Researchers Create Noise-Cancelling Windows
Econo Times (US), 2 May​ 2018