Reverb is a term used for describing the simulated effect of a sound taking place in a room. A lot of people confuse this with echo, or a more common type used in audio production – delay. The difference could be described like this: An echo or delay is a reproduction of a sound, while a reverb emulates the actual room, that is, the sound actually bouncing against all those walls back and forth several times. Think about it, if you’re standing in a church and yelling at the top of your lungs (do try this!) you will not only hear the echo of your voice, you will hear that it actually takes place in a building like that because that is what a church sounds like.