What does a heartbeat sound like in the quietest place on Earth? This is an anechoic chamber: a room completely void of reverberations. Located at Orfield Laboratories in Minneapolis, MN, the chamber has been dubbed the “world’s quietest room.” After just 30 minutes inside, you start to hear your own heartbeat. In fact, the first half of this video is an audio recording of a heartbeat made inside the room's padded walls. Orfield Laboratories test the sounds of things—from consumer products to me
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Why It's So Hard to Stay in the World's Quietest Room. The anechoic chamber, located at Minnesota State University, is known as the world's quietest room, designed to eliminate all sound and reflections. In this room, sound levels drop to an astounding -9.4 decibels, a level so low that it is almost impossible to experience total silence in normal environments. This unique design creates an eerie sensation, where sounds from within the body, like heartbeat or breathing, are amplified. People oft
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