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


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


dB scale with some rough examples We said above that the decibel is a ratio. So, when it is used to give the sound ...


Lesson 2: Sound Properties and Their Perception. Intensity and the Decibel Scale. Sound waves are introduced into a medium by the vibration of an object.


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


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


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 ...


Decibel Exposure Time Guidelines ... see the tabs at the bottom of the page to find sound levels for settings occupational, non-occupational, military, aircraft, etc .


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 ...