![]() ![]() Noise-cancelling system with the wireless IoT relay taped on the room’s inside wall and the ear-device composed of a microphone, an anti-noise speaker, and a DSP board. With the window wide open, the system is capable of cutting noise by 50 percent.Ĭurrently, the researchers are working on reducing the size of the speakers, so they don’t cancel out easing ear strain with an eye sore. In this case, the researchers covered a window with a grid of speakers hooked up to a microphone and processor. They applied the same principle found in noise cancelling headphones: use a microphone to pick up incoming soundwaves, then send out an out-of-phase wave to cancel them out. Now, researchers at Nanyang Technological University in Singapore have found a solution. If you want to let in light, to say nothing of air, you will also be letting in sound. However thick the walls, though, windows are the weak link. If the world must be cacophonous, our homes and offices, at least, should be a refuge from the clangor. Image: Nanyang Technological University in Singapore Turning Down the Volume on the Open Window New noise-cancelling device mounted onto window grilles can reduce up to 50 percent of noise from the surrounding environment. ![]()
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