**Reverb**, or **reverberation effect**, is an effect applied to sound that gives it more presence. When used subtly, it creates the effect of hearing a sound in a real-world environment.

* A dry sound has less reverb. A wet sound has more reverb.

University of Michigan - Ann Arbor

**Reverb** and **delay** are effects that can add a sense of space and depth. To keep sound effects from becoming too prominent a part of an earcon’s sound, they should be used sparingly.

The more reverb and delay a sound has, the more **wet** the sound is as opposed to dry.

Effects of sound attributes

Material Design Documentation

Reverb

Similar to reverb, delay uses echoes of the original sound blended in with that sound to create a decorative effect. Delay should be used purposefully and sparingly.

* A dry sound has less delay. A wet sound has more delay.

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