A large number of input devices, effects gear, and other equipment can make running a large show difficult. In situations where multiple cues have to be run in rapid succession or simultaneously, it can become nearly impossible for a single operator to run the system. These types of situations are where some form of automation can help immensely. Most multi-effects units can be run via MIDI, allowing a simple way to control these units from a single control pad or a computer. Rather than having to set controls on a number of front panels, computer software can automatically send out the necessary commands to control the units.
Many productions require sound effects to be played back precisely on cue.
In complex setups, sounds may be made to come out of any of a number of speakers independently, so as to add realism to the effect. Cueing the sound and controlling the mixing console to position the sound in sound-space becomes a formidable task. Integrated systems for cueing and mixing sound help incredibly in this area. Unfortunately, most systems are well out of the price range of most college theatres. However, a system the author has co-developed, called SMsurround , has brought forth an affordable and powerful automated sound system.