FabFilter User Forum
Pro-Q4 dynamic EQ ratio?
Hi there,
I can't seem to find a ratio control in Pro-Q4 dynamic EQ mode. How could I control the compression/expansion speed in Pro-Q4? What's the default ratio number used here?
Eric — Oct 16, 2025
Hi there,
I can't seem to find a ratio control in Pro-Q4 dynamic EQ mode. How could I control the compression/expansion speed in Pro-Q4? What's the default ratio number used here?
Hi Eric,
The dynamic EQ function of Pro-Q is highly program dependent. The ratio depends on the signal, the threshold setting and what part of the frequency range the band is processing. Same goes for the attack and release times. There are no hard values for these available. In Pro-Q 4 you can increase or decrease the attack and release, but since this will remain relative based on the program material this change is shown in percentages. You can access the attack and release settings by clicking the two arrow above the gain parameter of a dynamic band.