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Definition for dBu

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A specific type of deciBelFullcompass LogoDefinition:
Abbreviated as dB. 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. whose 0 dBu reference point is 0.775V with an open circuit. Also equals -2.2 dBVFullcompass LogoDefinition:
A specific type of deciBel whose 0 dBv reference point is 1.0V with an open circuit. -10dBV is a standard level for consumer-grade audio equipment..

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