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Sound Waves - The Decibel Scale
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The Decibel Scale
The decibel scale is used to express the ratio between two values of a physical quantity, in this case, sound intensity
We use the equation \(L_p\)= 20 log10\(\frac{prms}{pref}\) to calculate this ratio is decibels
Where Prms = is the sound pressure being measured and Pref = the reference pressure
To the right is a scale showing how loud certain values on the decibel scale are.
The Decibel Scale
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- This note describes the decibel scale and how to calculate the sound level of a sound in decibels
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- ed.wilson89
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- Created by leonie.examtime · Dec 9, 2013
- Copied by ed.wilson89 · Dec 9, 2013
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