254K views · 1.7K reactions | Aluminum window sound insulation test | Window Home | Facebook

Ever wondered how a window can almost completely block out exterior noise? Here's a practical example of soundproofing, a key feature in high-quality windows. With the window open, you can clearly hear the music playing inside, but once it's closed, the sound stays trapped, showcasing how materials and efficient design can make a huge difference in noise reduction. Perfect for those who value peace and quiet... or for anyone trying to keep their karaoke skills hidden from the neighbors! Video by