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What do we use dB and VU in music and what do they mean?? How do I calibrate my VU meter pedals against a Soundboard reference?
The decibel is a RELATIVE unit of measure. 0 dB or 10 dB by itself does not have a meaning. Something can be 10 dB louder or 5 dB quieter than something, but it's not an ABSOLUTE scale.
0 VU = 1.228 VRMS, 1 kHz sinewave.
0 dBV = 1.000 VRMS, 1 kHz sinewave.
0 dBu = 0.775 VRMS, 1 kHz sinewave.
And there are more!
0 dBFS = dB Full-Scale = the maximum the unit can put out because a digital -to-analog converter maxed out.
0 dBc = 0 dB relative to a carrier signal.
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Негізгі бет A definitive explanation: Voltage Units VU, decibels dB, dBV, dBu - How to measure your guitar rig!
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