A Convolution Reverb consists of a recorded sample (called an Impulse Response or "IR") of an acoustic space to excitation from a signal such as a sweep tone, starter gun, or snare drum crack, and the effect on the space of that signal after it has been removed and usably transformed by the convolution processor.

What does convolution reverb do?

Convolution reverb uses digital recordings of physical spaces (impulse responses) to recreate the reverb of those places. Convolution reverb is often used in film production, with sound engineers recording impulse responses of sets and locations so sounds can be added in post-production with realistic reverberation.

Is convolution reverb any good?

Convolution reverb is an extremely realistic-sounding and useful way to recreate specific acoustic environments. Because of this, convolution effects have become a go-to in audio post production, allowing engineers to place sound effects and dialogue in a sonic environment that is stunningly convincing.