reverberates

Reverberates is the third-person singular present tense of the verb reverberate, meaning to be repeated, resounded, or prolonged after the source of sound ends, typically due to reflections from surfaces. It can also be used metaphorically to describe ideas, events, or effects that continue to be felt.

From Latin reverberare, re- plus verberare (to strike). The sense in acoustics and physics emerged as scholars described sounds that linger after emission.

In acoustics, reverberation results from sound waves bouncing off walls, ceilings, and objects, producing multiple reflections that decay over time. The decay rate is quantified as RT60, the time for sound to drop by 60 dB. The design of a space and its materials strongly influence how reverberates.

In audio engineering, reverberation is simulated with reverb effects, using digital algorithms or physical devices such as plate or spring reverbs. Parameters include decay, pre-delay, diffusion, and wet/dry mix to shape how the sound reverberates.

Architects and space designers manage reverberation by selecting materials, geometry, and occupancy to achieve suitable acoustics for speech, music, or performance.

Figuratively, something that reverberates can have a lasting impact, spreading beyond its origin as ideas, events, or policies echo through time.