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Decibel

en.wikipedia.org/wiki/Decibel

The decibel (dB) is a logarithmic unit used to express the ratio of two values of a physical quantity, often power or intensity. One of these values is often a standard reference value, in which cas...

Decibel (Loudness) Comparison Chart - Galen Carol Audio

www.gcaudio.com/resources/howtos/loudness.html

Decibel (Loudness) Comparison Chart. Here are some interesting numbers, collected from a variety of sources, that help one to understand the volume levels of ...

Dangerous Decibels » How Loud is Too Loud?

dangerousdecibels.org/education/information-center/decibel-exposure-time-guidelines/

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 .

Common environmental noise levels | CHC

chchearing.org/noise/common-environmental-noise-levels/

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 ...

Noise Comparisons

www.chem.purdue.edu/chemsafety/Training/PPETrain/dblevels.htm

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).

dB: What is a decibel? - Physclips.

www.animations.physics.unsw.edu.au/jw/dB.htm

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

Hearing Loss and Decibel Levels - New Orleans Musicians' Clinic

neworleansmusiciansclinic.org/health/topics/hearing/hearing-loss-decibel-levels/

A jackhammer produces a sustained noise level of 120 dB, the noise from a large truck can peak at 90 dB, and the average noise level inside the cabin of an ...

What is a decibel, and how is it measured? | HowStuffWorks

science.howstuffworks.com/question124.htm

The decibel (abbreviated dB) is the unit used to measure the intensity of a sound. The decibel scale is a little odd because the human ear is incredibly sensitive.

Noise - American Speech-Language-Hearing Association

www.asha.org/public/hearing/Noise/

Noise levels are measured in decibels, or dB for short. The higher the decibel level, the louder the noise. Sounds that are louder than 85 dB can cause ...

Decibel 10th - Professional Noise Meter on the App Store

itunes.apple.com/us/app/decibel-10th-professional/id448155923?mt=8

Feb 17, 2016 ... Decibel 10th turns your iPhone, iPad and iPod touch into a professional sound meter, precisely measures the sound pressure level all around ...

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Comparitive Examples of Noise Levels | Industrial Noise Control

www.industrialnoisecontrol.com

Noise Source. Decibel Level. Decibel Effect. Jet take-off (at 25 meters). 150. Eardrum rupture. Aircraft carrier deck. 140. Military jet aircraft take-off from aircraft  ...

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

www.noisehelp.com

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

Harmful Noise Levels-Topic Overview - WebMD

www.webmd.com

Nov 14, 2014 ... Following is a table of the decibel level of a number of sounds.Noise levels Noise Average decibels (dB)Leaves rustling, soft music, ...