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What is the term dBu?


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2009-05-12 21:28:04
2009-05-12 21:28:04

What is dBu? A logarithmic voltage ratio with a reference voltage of V0 = 0.7746 volt ≡ 0 dBu

The origin of the index of dBu comes from "u = unloaded" and of dBV is from "V = 1 volt". Some say:

The "u" in dBu implies that the load impedance is unspecified, unterminated, and is likely to be high. The home recording level (consumer audio) of −10 dBV means 0.3162 volts, that is −7.78 dBu. The studio recording level (pro audio) of +4 dBu means 1.228 volts.

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The origin of the index of dBu comes from voltage "u = unloaded". The "u" in dBu implies that the load impedance is unspecified, unterminated, and is likely to be high.

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Yes A=B B=C etc so CAT in cypher is DBU as one example

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dBm is decibel power unit referenced to 1 milliwatt. Look at the related links for conversion: voltage to dBm, dBu, and dBV.

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Yes, full names should be used when labeling hazardous waste. If abbreviations are used and they are mistaken for another substance, improper disposal and possibly a safety hazard may result. The full name does not need to be the systematic name, but rather an unambiguous name. For example, when disposing 'DBU', one does not need to use the name 2,3,4,6,7,8,9,10-octahydropyrimido[1,2-a]azepine, but the abbreviation DBU should not be used due to its ambiguity. Thus, 1,8-Diazabicyclo[5.4.0]undec-7-ene or Diazabicycloundecene is preferred.


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