# How to Calculate the Decibel Level?

The decibel level is a measure of sound intensity in reference to the minimum audible human sound. The higher the decibel level of a sound is, the louder it is. A sound that is 0 decibels is just b... Read More »
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## How to Calculate Decibel Level Distances?

Decibel levels of everyday noises are easy to gauge once you know a few simple guidelines. Decibel levels vary according to how close you are to an object making noise. According to the Children's ... Read More »
http://www.ehow.com/how_6390965_calculate-decibel-level-distances.html

## What is the decibel level of a jet plane?

The sound of a jet plane at takeoff (100 feet) is approximately 120 to 130 decibels (dB). The sound of the engine of a stationary jet is approximately 140 decibels (dB). Prolonged exposure to sound... Read More »

## How to Measure the Decibel Level of Headphones?

Listening to headphones that are too loud for an extended period of time can damage your hearing. Sound waves coming from headphones, though not as large, can be as damaging to your hearing as sitt... Read More »

## What is the decibel level of a smoke detector?

Smoke detectors, which intentionally are very loud so they'll be able to wake up a sleeping occupant in the event of a fire, generally are 85 decibels loud. Louder smoke detectors--along with ones ... Read More »

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