VST Software

VSTi

VST instruments generate audio. They are generally either virtual synthesizers or samplers.  Some specifically recreate the look and sound of famous synthesizers from years past.

VSTfx

VST effects process audio input. Other monitoring effects provide visual feedback of the input signal without processing the audio. Normally hosts allow multiple effects and audio processing at the same time.

VST MIDI

VST MIDI effects process MIDI messages prior to routing the MIDI data to other VST instruments or hardware devices; for example, to transpose or create arpeggios.

Check out the submenu items for cool VSTi, VSTfx (and in the future maybe) VST MIDI plugins, both free and paid software!