Natural reverb is created when playing music in different buildings, rooms or areas. For example large spaces create a deep echoey effect as the original sound is reflected many times across the room. The sound decays as things in the room absorb it. This effect is now created digitally. There are different versions such as Room, Chamber, Spring and Plate. Spring and plate reverbs mimic the effect of a sound been reverberated through metal springs or plates. The example in the audio clip is a hall reverb.