Reverb occurs when sound reflects off surfaces like walls, ceilings, and floors. These reflections reach the microphone slightly delayed, creating an echo-like effect.
Source Signal
Imagine singing in your shower: Your vocal chords produce a melody, turning your body into its source. The sound leaving your mouth is your original, dry voice. It travels straight to your ears (or a microphone) without bouncing around first. This source signal is the direct sound of you singing before the room affects it.
Early Reflections
Right after your voice leaves your mouth, it hits nearby surfaces. These reflections arrive within milliseconds and are therefore called early reflections. They are still quite clear and help your brain understand the measurements of the room. Bathroom walls are usually tiled and hence not very absorbing. So most of your signal will bounce off, turning the walls into secondary sound sources that keep sending the signal to other walls and so on.
Late Reflections
After many more bounces, the sound becomes dense and blurred together. Individual echoes are no longer distinguishable and the sound slowly fades out over time. We call this late reflections or reverb tail.
Together, these three elements—source signal, early reflections, and late reflections—form the complete reverb experience. They shape how we perceive distance, environment, and emotion in sound, turning a simple voice into something that feels alive within a space.

