Protoverb is an experimental "room simulator" style reverb plug-in created in an effort to research and learn more about reverb.
While the controls and look of Protoverb are simplified, underneath is a complex array of parallel, serial and networked delays and the parameters to control these delays. This means there is no mathematical formula that makes such a structure sound "just right". As with delay based reverbs, it's down to trial and error, and luck with random values.
#Musicproduction: u-he releases Protoverb - Free "Research-ware" Plug-in for Mac & Win VST, AU & AAX #freedownload