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Decibel - Wikipedia

en.wikipedia.org/wiki/Decibel

An example scale showing power ratios x and amplitude ratios √x and dB equivalents 10 log10 x. The decibel (dB) is a logarithmic unit used to express the ratio of two values of a physical ...

dB: What is a decibel? - Physclips. - UNSW

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

graph of dB scale. Definition and examples; Sound files to show the size of a decibel; Standard reference levels ("absolute" sound level); Logarithmic measures ...

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

science.howstuffworks.com/question124.htm

The decibel scale measures sound based on human hearing, which makes it one of the most unusual scientific measurements.

Decibel Scale | Sound | Oscillations and mechanical waves ...

www.khanacademy.org/science/physics/mechanical-waves-and-sound/sound-topic/v/decibel-scale

We often use this logarithmic scale to describe the intensity of sound.

Decibels - HyperPhysics

hyperphysics.phy-astr.gsu.edu/hbase/Sound/db.html

The decibel scale is a reflection of the logarithmic response of the human ear to ... The sound intensity in decibels above the standard threshold of hearing is ...

Decibel Scale - Physics Video by Brightstorm

www.brightstorm.com/science/physics/vibration-and-waves/decibel-scale/

The decibel scale is used to measure the intensity of sound waves. A wave with an intensity of 0 decibels is impossible to hear. Normal speech, on the other ...

The Decibel Scale: What Is a Decibel (dB)? Noise and Sound Units

www.noisehelp.com/decibel-scale.html

A readable explanation of the decibel scale (dB scale), including dBA and dBC. Also phons and sones, noise units for measuring loudness.

Dangerous Decibels » How Loud is Too Loud?

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

Decibel Exposure Time Guidelines. Exposure Time Guidelines. Accepted standards for recommended permissible exposure time for continuous time weighted ...

Sound and Noise - Characteristics of Sound and the Decibel Scale

www.epd.gov.hk/epd/noise_education/web/ENG_EPD_HTML/m1/intro_5.html

Loudness and the Decibel Scale. Another property of sound or noise is its loudness. A loud noise usually has a larger pressure variation and a weak one has ...

Decibel - Galen Carol Audio

www.gcaudio.com/tips-tricks/the-relationship-of-voltage-loudness-power-and-decibels

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  ...