For more information on cookies please refer to our cookies Orfield Labs has spent a decade researching elderly living conditions and preferences for those with limited, sensitive, or otherwise augmented sensory considerations. The quietest place on earth, an anechoic chamber at Orfield Laboratories in Minnesota, is so quiet that the longest anybody has been able to bear it is 45 minutes. Apartment For Student. It is claimed that the world record for staying in this room is 45 minutes (one source claims 60 minutes). In order to not be moved by the guards, Shalev-Gerz remained completely still and silent throughout her entire stay. Minimization of the reflection of sound waves by an anechoic chambers walls. pork chops. The basic principle behind making a room quiet to such high degrees is to ensure that there are almost no rebounding sound waves, meaning that all sounds are absorbed by the room itself. As a soundproofing specialist, I help people with their acoustic needs in order to make them happy! As a general rule, the larger the chamber and the more sound-absorbing material used, the more expensive it will be. More importantly, there have been studies on whether anaechoic chambers and darkness give hallucinations or psychotic states. Rio Fredrika, one of UNILADs presenters, spent 1 hour and 7 minutes in the chamber, which cuts out over 99% of all sound.