FabFilter Pro-C 2 online help


The dynamics algorithms often need to make very quick changes to the audio when applying gain change. These sudden changes can introduce a small amount of aliasing, which causes distortion and generally reduces the quality of the audio signal. Oversampling is a way to reduce that aliasing by running the internal process at a sample rate that is two or four times higher than the host's sample rate.

FabFilter Pro-C 2 Oversampling

When should I use oversampling?

You need it more when the compression is more aggressive and apparent. Usually, this is the case when using lower Attack and Release and/or higher Ratio and Range settings.

Of course, in return for a reduction of possible aliasing/distortion, the plug-in will use more CPU power when using oversampling. In addition, oversampling introduces a small latency, in addition to lookahead latency.


  • Do you need to use zero-latency processing? Disable oversampling and lookahead in the bottom bar.

Next: Full screen mode and resizing

See Also
Using FabFilter Pro-C 2
Dynamics controls
Time controls