Noise cancelling device by NTU EEE scientists halves noise pollution ...
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)
A window that can reduce noise pollution by 50 per cent, even when open, has been unveiled by scientists . The prototype device is likely to be a boon to anyone living under a flight path, busy road or living beside noisy neighbours. It uses 'active noise control' technology - found in many high-end noise cancelling headphones - that has been adapted to work in a large open area. Scroll ...
Scientists create noise cancelling windows
The device uses a special sound emitting mechanism which works like a speaker and is hooked up to a processing unit. Equipped with a microphone, it can detect noise even before it reaches the window and computes the attributes of the incoming noise in real-time. It quickly emits a countering sound or "anti- noise " that has the same waveform characteristics of the invading noise but with one ...
Equipped with a microphone, it can detect noise even before it reaches the window and computes the attributes of the incoming noise in real-time. It quickly emits a countering sound or "anti- noise " that has the same waveform characteristics of the invading noise but with one difference: it is inverted or "flipped".
Scientists create noise
The system works in a similar way to noise-cancelling technology found in high-end headphones: a microphone captures the real-world noise and speakers emit sound waves to counter it.
The device uses a special sound emitting mechanism which works like a speaker and is hooked up to a processing unit. Equipped with a microphone, it can detect noise even before it reaches the window and computes the attributes of the incoming noise in real-time. It quickly emits a countering sound or "anti- noise " that has the same waveform characteristics of the invading noise but with one ...
Noise Cancelling Device by NTU Scientists Halves Noise Pollution ...
Nanyang Technological University, Singapore (NTU Singapore) researchers have developed a device that can reduce noise pollution entering buildings even while windows are wide open. Noise Cancelling Device Designed to be mounted onto window grilles, the device could reduce up to 50 per cent of noise coming from nearby environments such as busy roads, train tracks or from […]
NTU Singapore researchers have developed a device that can reduce noise pollution entering buildings even while windows are wide open.
Scientists Say You Can Cancel the Noise but Keep Your Window Open
The Anti- Noise Control Window , as it is called, is the sonic equivalent of shutting a window . With any sound , the best way to reduce it is at the source, like a gun's silencer.
Researchers have spent the past fifteen years developing systems that can reduce noise coming through partially open windows while still allowing natural ventilation.
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