130 decibels: jackhammer, power drill, air raid
120
23
There is a few generators that will produce less than 60 decibels. That is about the same decibels as background music. These are good to use if you live in an apartment or have very close neighbors.
60
1 bel = 10 decibels
A bel is a unit of sound intensity equal to ten decibels.
A bel is a unit of sound intensity equal to ten decibels.
dB meaning one hundredth of a bel.
Decibel (dB) * The Bel is the primary unit. However, the scale is too large. So for human hearing, we use the deciBel, where each deciBel is 1/10 of a Bel. this is abbreviated dB.
Sound energy is normally measured in either pressure or decibels (a bel is an inconveniently large unit).
Sound energy is normally measured in either pressure or decibels (a bel is an inconveniently large unit).
The intensity of sound pressure is measured in decibels. dB. Named after Bell the inventor of the telephone, and founder of the Bell Laboratories. This is a ratio, and is a non-SI unit - an associated or derived unit. One Bel is a sound that sounds twice as loud as another, and equals 10 decibels. Note that as this is named after a person, the 'bel' part is capitalized, e.g. dB.
20 decibels
207 decibels.
70-100 decibels
Sound is measured in decibels, dB. Ten decibels (one Bel) sounds twice as loud as another sound. One decibel is the amount of sound just distinguishably louder than another sound. Named after A G Bell of telephone fame.