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The decibel scale measures sound based on human hearing, which makes it one of the most unusual scientific measurements. ... Please copy/paste the following text to properly cite this HowStuffWorks article:; ... The decibel (abbreviated dB) is the unit used to measure the intensity of a sound. The decibel scale is a little...
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www.howstuffworks.com/question124.htm
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Weakest sound heard 0dB ... Whisper Quiet Library 30dB ... Telephone dial tone 80dB...
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www.gcaudio.com/resources/howtos/loudness.html
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Dangerous Decibels is a joint project of the Oregon Museum of Science and Industry and the Oregon Hearing Research Center integrating exhibitry, curriculum, and research to create a strong public health campaign against Noise-Induced Hearing Loss. ... The Bad News: ... Approximately 30 million Americans are affected by hearing loss.
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www.dangerousdecibels.org/
www.dangerousdecibels.org/
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Decibel - Wikipedia, the free encyclopedia
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The decibel ( dB ) is a logarithmic unit of measurement that expresses the magnitude of a physical quantity (usually power or intensity) relative to a specified or implied reference level . Sinc...
en.wikipedia.org/wiki/Decibel
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Decibels are designed for talking about numbers of greatly different magnitude, such as 23 vs. 4,700,000,000,000. With such vast differences between the numbers, the most difficult problem is getting the number of zeros right.
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artsites.ucsc.edu/EMS/Music/tech_background/TE-06/teces...
artsites.ucsc.edu/EMS/Music/tech_background/TE-06/teces_06.html
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The sound intensity I may be expressed in decibels above the standard threshold of hearing I0 . The expression is ... The factor of 10 multiplying the logarithm makes it decibels instead of Bels, and is included because about 1 decibel is the just noticeable difference (JND) in sound intensity for the normal human ear.
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hyperphysics.phy-astr.gsu.edu/hbase/sound/db.html
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For instance, the difference between intensities of 10, an actual difference of 10,000 units, can be expressed as a difference of 4 bels or 40 decibels.
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www.sfu.ca/sonic-studio/handbook/Decibel.html
www.sfu.ca/sonic-studio/handbook/Decibel.html
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Decibels: dB, dBA, dBC, dBV, dBm and dBi? What are they all? How are they related to loudness, to phons and to sones? This page describes and compares them all and gives sound file examples. A related page allows you to measure your hearing response and to compare with standard hearing curves.
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www.phys.unsw.edu.au/jw/dB.html
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SOUND PRESSURE LEVELS; (in decibels - dB) ... (The following is a table of common everyday sounds along with sounds common in music. The red numbers are the sound levels measured in decibels. Wherever possible, I have included the distance at which the sound level is being measured.)
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www.coolmath.com/decibels1.htm
www.coolmath.com/decibels1.htm
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[dĕśə-bəl, -bĕĺ]
