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dB / amplitude factor volume conversion
Conversion from dB to amplitude factor:
dB:
Conversion from amplitude factor to dB:
Factor:
A volume knob / fader example:
Fader position
dB gain
Amplitude factor
100
+10.0 dB
3.162 x
95
+8.7 dB
2.711 x
90
+7.3 dB
2.305 x
85
+5.8 dB
1.942 x
80
+4.2 dB
1.619 x
75
+2.5 dB
1.334 x
70
+0.7 dB
1.085 x
65
-1.2 dB
0.868 x
60
-3.3 dB
0.683 x
55
-5.6 dB
0.526 x
50
-8.1 dB
0.395 x
45
-10.8 dB
0.288 x
40
-13.9 dB
0.202 x
35
-17.4 dB
0.136 x
30
-21.4 dB
0.085 x
25
-26.1 dB
0.049 x
20
-31.9 dB
0.025 x
15
-39.4 dB
0.011 x
10
-50.0 dB
0.003 x
05
-68.1 dB
0.000 x
00
-inf dB
(no sound)
LibreOffice Calc / MS Excel
To make call B1 show the dB value of the factor entered in cell A1, place this formula in cell B1:
=IFERROR(LOG10(A1)*20,"")
Website by Joachim Michaelis