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decibel

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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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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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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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Decibel (disambiguation)
Decibel may also refer to: Music Decibel (band), an Italian punk rock band Decibels (album), an album by Razor "Decibel", a song by AC/DC on the album database Decibel (magazine), a heavy metal periodical Decibel Festival, an electronic music and visual art event Chamber (comics) or Decibel, a fictional wikipedia.org
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Decibel (magazine)
Its sections include Upfront, Features, Reviews, Guest Columns and the Decibel Hall of Fame. Tour Beginning in 2012, Decibel has put on an annual tour in the US and Canada. wikipedia.org
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How to add Decibels? I have just started studying Audio Engineering and I have come across a section where I need to add decibel levels together. I am aware that adding two decibel levels together will always give yo...
Decibels do not add. What we add is the power (assuming no interference). See the wikipedia page to know how decibels are related to powers. < $$dB=10\lg P.$$ So if power $P=1$, we have $dB=0$. And if $P=10$, we have $dB=10$. A similarly defined quantity in chemistry is $pH$, which is related to the...
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Decibel (film)
Decibel () is a 2022 South Korean action thriller film directed by Hwang In-ho, starring Kim Rae-won, Lee Jong-suk, Jung Sang-hoon and Park Byung-eun. Premise Decibel is a sound terror action film revolving around a bomb designer who wants to occupy the city center with a special bomb that explodes when wikipedia.org
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Question on bel and decibel? > * What do these units of measurement mean? > In Analogue Electronic class, the Prof uses $20 \log_{10}$ and in my Networks and Protocols class, the Prof uses $10 \log_{10}$ but they...
The Analogue Electronics prof is talking about amplitudes and the Networks and Protocols prof is talking about powers or intensities. If a signal has intensity $x$ times the intensity of the reference level, it is $\log_{10}(x)$ bels or $10 \log_{10}(x)$ decibels. The intensity is proportional to th...
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Decibel (band)
Decibel is an Italian punk rock band formed in 1977. wikipedia.org
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Comparing two decibel values For my son's science fair project, we are measuring wi-fi signal strength in decibels, a logarithmic scale. We want to determine the relative strength of two values. I think that a value o...
The reason that we use logarithmic scales is because linear scales fail to provide good visual comparison of the data, typically resulting from the exponential behavior of the phenomenon we're observing. The downside is that unless you are clever enough to understand that you're looking at a logarit...
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Decibel - Wikipedia
Decibel. 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 quantity on a logarithmic scale. Two signals whose levels differ by one decibel have a power ratio of 10 1/10 (approximately 1.26) or root-power ratio of 10 1⁄20 (approximately 1. ...
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Decibel (KDE)
Decibel 是一个KDE 4新的通信框架。Decibel 的目标是整合所有到桌面的通信协定。现在用户都接触不同的应用程式：AOL、MSN、电子邮件、Skype等。Decibel将存储的所有联系在一个地方，方便用户管理和沟通。 例如爱丽丝想和鲍勃说话。 Decibel 能够管理桌面的具体行为、协定配置和帐户管理。 外部连结 Decibel home page KDE wikipedia.org
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Decibel Festival
The Decibel Festival was a member of ICAS (International Cities of Advanced Sound). See also List of electronic music festivals References External links Decibel Festival Decibel Facebook Page Decibel Twitter Page Decibel YouTube wikipedia.org
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