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landscape, onto which two projectiondesign projectors map terrain details and all the troop movements in a 2.5D technique that mimics a three-dimensional display. At the conclusion of the

game, visitors finish their tour with the Epilogue show, which follows the same format as the Prologue and is equipped with Panasonic projectors for 3D projection and a 7thSense Delta Duo media server.

MAKING IT WORK “There are very few companies that have the technical expertise and experience to be able to design, install and maintain such a sophisticated and immersive audiovisual experience that involves synchronised systems,” comments Tom Ingrey- Counter, interpretation sub-project manager for the visitor centre. “For the National Trust of Scotland this has been a very adventurous project and we’ve really relied on the expertise of Electrosonic to deliver it and I testify to the quality of the service provided.”


for 3D images is equipped with two projectors with appropriate filters. The screens themselves are part of the exhibition structure, painted with an Ultra Silver 3D Goo paint to preserve linear polarisation. All 3D images are sourced

from dedicated twin- channel 7thSense Delta Duo media servers providing uncompressed image storage. The four main show servers are synchronised. Other interactive exhibits use high-specification DVS computers with appropriate graphics outputs. The Battle Game uses two DVS Hydra 3 computers to provide real- time graphic images; another computer runs the game and supports the twin touch screen display used by the Battlemaster. To ensure the continual

and reliable operation of the Battle Game, Electrosonic installed dual PCs in a redundant configuration of primary and secondary. The PCs run the Battlemaster control and feed graphics to the projectors; the Battlemaster can switch between them within

seconds at a touch of a button from the console and continue the game without disturbing customers should anything happen. While the visitor centre visuals are impressive in their own right, audio also plays an important part in the overall experience. The main show uses a 7.1 multichannel surround sound system with Tannoy speakers and T&M amps. The Character Stations have 10 highly directional Panphonics Sound Shower overhead loudspeakers. Mood images surrounding the Battle Game space also have 7.1 multichannel surround sound. All equipment has a

network connection for control and monitoring, and overall system control is by a standard AMX room control system. A wireless AMX touchpanel allows for remote control anywhere within the exhibition. The source and control equipment are rackmounted in a central control room. The installation follows Electrosonic’s preferred practice for sites of this kind, with all site cabling terminated in suitable socket boxes. This allows

all site cables to be properly terminated and tested in advance. The racks were factory built at Electrosonic’s Dartford office and arrived on site with cable and plug assemblies that plugged into the waiting sockets. This minimised installation time and provided a more reliable and maintainable system. “The quality of

Electrosonic’s technical design for resilient systems is excellent, and is a key aspect of the project; no matter how creative the team is, if the system doesn’t enjoy 99%+ uptime, then all is lost,” comments Chris Walker, MD of Bright White. “Electrosonic worked admirably with the

designers, the operators and Bright White’s media contractors to provide one of the most intelligent and advanced AV systems we are aware of in the museums sector.”  projector

In the Prepare for Battle exhibition, Panasonic PT- DZ110XE projectors show a continuous sequence of life-size 3D images

72 June 2014

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