Volts, dBV, and dBu are three units describing voltage levels that are used interchangeably in professional audio based on the point of reference.
dBu or dBv (decibel reference voltage 0.775 V, amplitude ratio) — absolute RMS voltage in decibels relative to the reference voltage (600 Ohms ∙ 0.001 W) 1/2 = (0.6) 1/2 ≈ 0.775 V ≈ –2.218 dBV because it is derived from a 600 Ohms load dissipating 0 dBm or 1 mW. If you can come up with a dBV or volts AC for how much max full scale output is, you could then calculated a conversion term.
-34 dBV means 34dB below 1V a very specific actual level. Not entirely accurate. dBv is a logarithmic voltage ratio with a voltage reference of 1 Volt. dBV refers to a voltage magnitude referenced to 1 volt, while dBu … The formula for Volts to dBv conversion is: And hence, the reverse formula for dBv to Volts conversion is: This audio tools provides a quick and convenient means to convert between them. 0dBVU is another vague term but if it is equal to 0VU, that is generally +4 dBu. must either turn the source down by 10 dB or install a -10 dB in-line attenuator. The formulas are as follows: The utility is obvious. - Use the dBm to dBuV calculator to convert from dBm to dBuV and vice versa. The reason we have so many suffixes -- dBu, dBm, dBV, dBSPL, dBFS, etc. Professional audio tends to prefer dBu, while consumer audio tends to prefer dBV. 1 V is equivalent to 0 dBv. dB, dBu, dBv, dBm, etc are all logarithmic units.
The only catch is to make sure you're referencing apples to apples. -- is because we have so many different kinds of things we want to measure.
dBu / dBV to Voltage Delay SPL Wavelength Impedance Low Impedance 100v Line Radio Mic Frequencies Channel 38 Dereg dBu. The only difference between dB and dB* is that dB is a relative difference between two quantities, which doesn't tell you anything about the actual values of the quantities. If my source can output +30 dBV and my load (input) can only accept +20 dBV before clipping, I . Reset Calculate Tool Information. You will see dBu used much more often.
The dBu or dBv indicates the same reference which is 0.775 volts. dBV.
The "V" indicates a dB reference based upon 1 volt. - Use the dBuV to volt calculator to convert from dBuV to volt and vice versa. dBu value: - Use the dBm to watt calculator to convert from dBm to watt and vice versa. dBV = 20 log E dBu = 20 log E/0.775.
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