What is a Reverb Tail?

A reverb tail is the gradually fading sound that remains after the original audio signal stops when reverberation is applied. It represents the lingering reflections of sound as they decay over time in a simulated or real acoustic space.

When a sound is produced in a room or processed with a reverb effect, the direct sound is followed by many reflections bouncing off surfaces. As these reflections lose energy, they slowly diminish in volume, creating the trailing sound known as the reverb tail.

The length and character of a reverb tail depend on factors such as room size, material reflections, and reverb settings like decay time and damping. In music production and sound design, reverb tails help create a sense of space, depth, and atmosphere in a mix.