Quick Tip 1: Reverb Damping
A lot of reverb units will allow for LF damping as well although old standards generally had HF damping. The idea of damping is not just about taking the edge off some metallic sound reverb tails, or smoothing out or adding to frequencies, but about simulating the solidity or reflective and absorption qualities of a space. Of course, using density and diffusion will get you the results you need but damping is crucial when it comes to controlling the actual perception of the space you are trying to emulate. Caverns and open spaces will exhibit different types of frequency reflections. A big but closed cave will have a completely different texture to a same sized and shaped space with wooden walls etc. A stone surface will have different reflective qualities to a soft sanded brick surface. A bare room of walls, floor and ceiling will exhibit different reflective qualities to the same room that has carpet, curtains and furniture. It is not simply about distance and direction of the reflections but about the absorptive qualities of the reflecting surfaces.
The added advantage of having these ‘filtering’ options is that we can ‘colour’ sound into a new sonic texture.