For comparison:



  • -20.6

  • Leaves

  • Fridge

  • Elephant

  • Jet

  • Rocket
Anechoic Chamber
-20.6

Microsoft’s main anechoic chamber has the lowest sound level ever recorded. It is just a few decibels off of the lowest sound theorized by scientists.

Rustling Leaves
Leaves

The 20-decibel sound of air moving through dry leaves is considered so relaxing that it is a stock sound in many meditation apps.

Refrigerator
Fridge

At 40 decibels, this household appliance is background noise in most of our lives.

Elephant
Elephant

The trumpeting sound of an elephant is a massive 112 decibels and can be identified by other elephants up to 1.5 kilometers away.

Jet
Jet

At takeoff, a jet plane’s engines register a ripping 150 decibels when heard from 25 meters away.

NASA Saturn V
Rocket

This rocket, created for moon exploration, shoots out an ear-shattering 220 decibels and can melt concrete.

-20.6dB


With a sound level of -20.6dB, Microsoft’s anechoic chamber holds the Guinness Record for “World’s Quietest Place.”

-20.6

-20.6