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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 .... Two signals whose levels differ by one decibel have a power ratio of 10<sup>1/10</sup>, ...

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 .

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

www.noisehelp.com/noise-level-chart.html

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/brain/tc/harmful-noise-levels-topic-overview

Following is a table of the decibel level of a number of sounds.Noise levels Noise Average decibels (dB)Leaves rustling, soft music, whisper30Average home ...

Decibel 10th: Professional Noise Meter on the App Store

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

Jun 2, 2016 ... Decibel 10th turns your iPhone, iPad and iPod touch into a professional sound meter, precisely measures the sound pressure level all around ...

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 ...

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 ...

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.

Sound Meter - Android Apps on Google Play

play.google.com/store/apps/details?id=kr.sira.sound&hl=en

Sound Meter is in the 4th set of the Smart Tools collection (noise, decibel meter). SPL(sound pressure level) meter app uses your built-in microphone to measure ...

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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) Recommended product: Outdoor Noise Barriers. 150. Eardrum rupture. Aircraft carrier ...

Noise Comparisons - Purdue University

www.chem.purdue.edu

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

chchearing.org

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 ...