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An example scale showing power ratios x and amplitude ratios √x and dB equivalents 10 log10 x. It is easier to grasp and compare 2- or 3-digit numbers than to compare up to 10 digits. The deci...

Decibel (Loudness) Comparison Chart - Galen Carol Audio


Decibel (Loudness) Comparison Chart. Here are some interesting numbers, collected from a variety of sources, that help one to understand the volume levels of ...

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


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

Decibels - HyperPhysics


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 ...

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


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

acoustics - Why is the decibel scale logarithmic? - Physics Stack ...


Mar 10, 2011 ... Logarithmic scales--whether for audio intensities, Earthquake energies, ... Therefore, the decibel scale is not just useful for calculating 3 dB ...

Dangerous Decibels » How Loud is Too Loud?


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

The Decibel Scale for Sound Intensity and Pressure Robert F


The Decibel Scale for Sound Intensity and Pressure Robert F. Port. Intensity Power is a measure of work per unit of time, and is measured in watts. For example ...

Understanding dB - JimPrice.Com


Note that this is a measurement of power, not a measurement of voltage. dbFS - relative to digital full-scale. dB SPL - A measure of sound pressure level.

How decibel sound level meters work - Explain that Stuff


Jun 4, 2015 ... A Quest sound pressure level meter (decibel meter). ... You have to think about the decibel scale very carefully, because it's a logarithmic scale ...

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dB: What is a decibel? - Physclips.


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

Decibel Scale | Sound | Khan Academy


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

Sound and Noise - Characteristics of Sound and the Decibel Scale


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 ...