Final answer:
The vast majority of reverb used in studios is artificial, generated by digital reverb units and software. It provides precise control over the sound, allowing engineers to mimic everything from small rooms to large halls through convolution or algorithmic reverb.
Step-by-step explanation:
The vast majority of reverb created and used in a studio or post-production environment is artificial, primarily generated through digital reverb units, software plugins, and effects processors. Unlike natural reverberation which occurs in physical spaces, artificial reverb can be precisely controlled and shaped to fit the artistic vision of a mix. In studios, reverb effects are used to add depth and space to recorded sounds, making them sound as though they are being played in various environments from small rooms to large halls.
Engineers have a variety of tools at their disposal, including convolution reverb, which uses impulse responses of actual spaces to emulate the reverb of those environments. Algorithmic reverb, another common tool, uses mathematical algorithms to simulate the echo and decay of a space. Both approaches allow for a wide range of sounds and can be adapted to the specific needs of a track.