The Magian DiAC System provides the software and hardware infrastructure to support an interactive environment in multimedia exhibits.  It is especially suited to projects featuring multichannel 'soundscape' audio, but also provides control functions for kiosk and other graphics and video based applications.

Software components of the DiAC System include the main DiAC audio program, the LCP (Logic and Communications Processor), and the SSE (SoundScape Editor).  The SSE is used to create the overall soundscape configuration, to suit individual project specifications, and can also be used for subsequent modifications if necessary.

DiAC provides an exhibit wide, interactive, multichannel audio environment.  This environment responds automatically to the presence or movement of visitors in different exhibit areas.  The software continuously adjusts parameters such as audio volume, track selection and playback location, ensuring a fresh, subtly different audio environment each day.

DiAC controls are derived from proximity and motion sensors (for automatic interactivity), also from touchscreens, hand-held devices, and traditional pushbuttons and switches (for manual control, where appropriate) and from other control sources.

DiAC can be configured to handle many presentation activities.  Wireless mic systems, PDA controllers and other devices are easily interfaced.  The software provides automatic 'ducking' of soundscape and kiosk audio during announcements.

Built-in Show Control features allow cueing of lighting controllers and other effects devices, all synchronised to timecode from video and other multi-media playback.   Show Control can be handled by DiAC alone, or may be shared between DiAC and other 3rd-party hardware and software, especially when the project involves extensions to an existing installation.

DiAC control functions are software-based, and thus can be readily customised for specific projects.  Audio level controls for a specific exhibit area, derived from sensors located in that area, can be configured to have local scope only.  Other controls, such as those for exhibit wide PA announcements, can be configured for global scope, still using the same, consistent control format.

System flexibility extends to the implementation of Show Control functions.  Being software-based, there are no inherent limits to the number of Cue times, Presets and other parameters that can be stored and recalled.  Also, the interface can be designed to present consistent 'look and feel', with graphics-type controls, optimised for specific project requirements independently of the underlying control activities.  These can include relay-switching of lamps and other exhibit devices controllable by switch-closure, and standard serial protocols for lighting dimmers.