the.com/decibel
the unit that makes noise mathematical and bragging about your stereo logarithmic
means A unit measuring the intensity or loudness of sound on a logarithmic scale, where each ten-decibel jump means roughly ten times the power.
from It's literally one-tenth of a bel: the prefix 'deci-' from Latin 'decimus' (tenth) attached to the 'bel,' a unit named in honor of Alexander Graham Bell, the telephone pioneer, by engineers at Bell Telephone Laboratories in the early 20th century. The full bel proved too coarse for everyday use, so the smaller decibel won out — meaning we measure sound in tenths of a tribute to the man who made us listen down a wire.
- named after
- Alexander Graham Bell, inventor of the telephone
- logarithmic
- every 10 dB means ten times the power
- deci means
- one tenth of a bel, the original unit
- deadly loud
- around 194 dB, sound becomes shockwaves in air
- quietest room
- Microsoft's anechoic chamber hits negative 20 dB
threshold of hearing — 0 db spl, the quietest sound the human ear can detect at 1000 hz
jet engine at takeoff — 140 db spl, measured at 25 meters from a boeing 747
threshold of pain — 130 db spl, the intensity where sound causes physical pain in humans