00:00The quietest room in the world is located on the Microsoft campus.
00:04The noise level in the anechoic chamber is minus 20 dB while absolute silence is reached at minus
00:1123 dB. Making the room any quieter is simply impossible because that's the level of sound
00:18produced when moving molecules collide. As soon as the door shuts, you stop hearing your own voice
00:24because the sound doesn't bounce off the walls. When you speak, it feels like you're screaming
00:28into a pillow. The sound barely carries, the room is used for scientific purposes. Thanks to the
00:34soundproofing, it can be used to fine-tune the quality of laptop and tablet speakers.
