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Decibel - Wikipedia
The decibel (symbol: dB) is a relative unit of measurement equal to one tenth of a bel (B). It expresses the ratio of two values of a power or root-power ... en.wikipedia.org
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Decibel Magazine | The World's Foremost Heavy Metal Authority
Decibel Magazine is America's monthly extreme music magazine delivering in-depth and intelligent coverage to the doorsteps of a legion since 2004. www.decibelmagazine.com
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Decibel (dB) | Definition, Formula, & Facts - Britannica
Decibel (dB), unit for expressing the ratio between two physical quantities, usually amounts of acoustic or electric power, or for measuring the relative ... www.britannica.com
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decibel
decibel (ˈdɛsɪbɛl) [f. deci- + bel.] The usual unit (equal to one-tenth of a bel) used in comparing the power levels in two electrical communication circuits (or two parts of the same circuit) or the intensities of two sounds; freq. used to express a single power level or sound intensity relative to... Oxford English Dictionary
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What is a decibel and what does it measure? - Healthy Hearing
A decibel (dB) is a unit of measurement for sound levels, also known as amplitude or volume. It is measured on a logarithmic scale, increasing ... www.healthyhearing.com
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DECIBEL Definition & Meaning - Merriam-Webster
The unit for measuring the relative intensities of sound is called a decibel. Because the decibel scale is logarithmic, a sound with an ... www.merriam-webster.com
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Decibel Levels - Measuring Dangerous Noise - Hearing Health Foundation
Safe and Unsafe Decibel Levels "Noise above 70 dB over a prolonged period of time may start to damage your hearing. Loud noise above 120 dB can cause immediate harm to your ears," says the Centers for Disease Control and Prevention on its website,. In the workplace, the National Institute for Occupational Safety and Health says, "The NIOSH REL [Recommended Exposure Limits] for noise is ...
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What exactly is a decibel : r/askscience - Reddit
A decibel is a logarithmic ratio that measures something relative to a reference level. In electronics, 0dB simply means the output of a circuit is equal to ... www.reddit.com
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Keep Listening | What Are Safe Decibels?
Decibels are the unit of measurement for sound, abbreviated dB. Sounds at or below 70 dB are considered safe for our hearing. That's the sound of a normal ... hearinghealthfoundation.org
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Decibels - HyperPhysics
Decibels measure sound intensity above the hearing threshold, using powers of 10, and 1 dB is the just noticeable difference. hyperphysics.phy-astr.gsu.edu
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dB: What is a decibel? - Physclips.
The decibel (dB) is a logarithmic unit used to measure sound level. It is also widely used in electronics, signals and communication. www.animations.physics.unsw.edu.au
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Decibel
Decibel is an early-stage venture capital firm. We invest in essential infrastructure software used by developers, data engineers, and cybersecurity teams. www.decibel.vc
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decibel
decibel/ˈdesɪbel; `dɛsəˌbɛl/ nunit for measuring the relative loudness of sounds, or for measuring power levels in electrical communications 分贝. 牛津英汉双解词典
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Decibel Chart: All You Need to Know - MDHearingAid
Jan 2, 2023Loud noise above 120 dBA is particularly dangerous and can cause immediate harm to your ears. A general rule of thumb is if you are speaking to someone at arm's length and need to raise your voice for them to hear you, the noise level in the environment is probably above 85 dB and could cause damage to your hearing over time. ...
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Decibel Chart of Common Sounds | dB Comparing Decibel Levels
Sounds ranging from 60 to 80 dB are not dangerous to human hearing. Nevertheless, they are still considered loud. The most common examples of sounds in this range are: · busy restaurant - 70 to 80 dB; · loud radio - 70 to 75 dB; · city street - 70 dB; · hairdryer - 70 dB; · dishwasher - 70 dB; · electric shaver - 60 dB;
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