AntiAlias VST filters out harmonics that occur above the nyquist Frequency by oversampling the input signal and then filtering. If you are using any instruments or effects that generate aliased digital audio (many of them) AntiAlias VST can Improve the sound quality. You will GeneRally notice a difference by hearing less annoying high frequency harmonics.
Features
Stereo Input and Output
64 Bit Floating Point Audio Engine
Minimum Phase Distortion FIR Filter.
v2.9.6
* Fixes a critical bug in affected previous versions of the VST plug-in which caused it to fail to perform properly.