MIT scientists created noise-cancelling silk sheets that can soundproof rooms

MIT scientists have made a revolutionary breakthrough by creating soundproof sheets that can actually block sound.

Scientists at MIT have developed a type of soundproof sheet that can not only cancel or block the sound, but it will even reflect the sound back at the maker. This new development could prove exceptionally useful in apartments with thin walls. The new development builds off of previous research by MIT researchers that sought to create sheets of fabric that could be converted into microphones. However, this newest project turns them into speakers instead.

To achieve the soundproofness, though, you also have to deliberately make the fibers out of phase with the offending sound waves. This allows them to cancel the other waves out. It’s a method similar to how noise-canceling technology in headphones works. During tests, the researchers were able to get the soundproof sheet to emit up to 70 decibels of sound while reducing the offending sounds by up to 37 decibels. And that was just with an 8 × 8 centimeter square of silk.

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