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Definition for Sound Pressure Level

A measurement of sound amplitudeFullcompass LogoDefinition:
The volume (Amount) of a signal, electrical, optical or acoustic. in the air expressed in decibels, referencing 0 dBFullcompass LogoDefinition:
1. A deciBel is a logarithmic ratio between two quantities, and is a nonlinear measurement that mimics human perception. 2. A unit expressing sound levels relative to a nominal level just audible by the average human ear, and equal to 1/10th of a Bel. SPLFullcompass LogoDefinition:
See Sound Pressure Level. = 20 micro Pascals = 0.0002 dynes/cm2.

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