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The Q-factor of the filters provided in oratory1990 presets is calculated as shown in RBJ's filter cookbook.
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Fabfilter uses their own definition of Q, which requires different numerical values to be put into a Fabfilter plugin to get the same result.
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This google sheet helps you calculate the numbers you need to enter into Fabfilter.
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Calculate Q-factors to enter in Fabfilter:
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Q (in oratory190 preset)0.710
<- enter the value from the oratory1990 EQ preset here.
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Q (that you need to enter into Fabfilter for Peak/Bell filters)
1.000
<- this value needs to be entered into Fabfilter EQ if it's a peak/bell filter
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0.711.009
<- this value needs to be entered into Fabfilter EQ if it's a shelving filter
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