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Decibel - Wikipedia


The decibel (dB) is a logarithmic unit used to express the ratio of two values of a physical .... Two signals whose levels differ by one decibel have a power ratio of 10<sup>1/10</sup>, ...

Comparitive Examples of Noise Levels | Industrial Noise Control


Noise Source. Decibel Level. Decibel Effect. Jet take-off (at 25 meters) Recommended product: Outdoor Noise Barriers. 150. Eardrum rupture. Aircraft carrier ...

Decibel (Loudness) Comparison Chart - Galen Carol Audio


Without getting too technical, the dB is a unit of measure for sound intensity or level. It is a logarithmic scale developed to express wide ranging quantities on a  ...

Noise Level Chart: dB Levels of Common Sounds - Noise Help


A noise level chart showing examples of sounds that have dB levels ranging from 0 to 180 decibels.

dB: What is a decibel? - Physclips.


("absolute" sound level). dB scale with some rough examples We said above that the decibel is a ratio. So, when it is ...

Dangerous Decibels » How Loud is Too Loud?


Decibel Exposure Time Guidelines ... see the tabs at the bottom of the page to find sound levels for settings occupational, non-occupational, military, aircraft, etc .

Dangerous Decibels » Noise Induced Hearing Loss


The average person can hear sounds down to about 0 dB, the level of ... If a sound reaches 85 dB or stronger, it can cause permanent damage to your hearing.

Noise Comparisons - Department of Chemistry - - Purdue University


Level, comment ... Military jet aircraft take-off from aircraft carrier with afterburner at 50 ft (130 dB). 130 ... Turbo-fan aircraft at takeoff power at 200 ft (118 dB).

Common environmental noise levels | CHC


The following decibel levels of common noise sources are typical, but will vary. Noise levels above 140dBA can cause damage to hearing after just one ...