Constructed and installed in collaboration with Lease Crutcher Lewis (general contractor) and Gunsul, Clark, Iverson (architect), the finished video wall measures 9-feet high by fully 52-feet wide, and is made up of four unframed Da-Lite Da-Plex rear-projection screens with a DA-100WA wide-angle coating. Content is delivered by six NEC 6,200-lumen XGA DLP projectors, housed in Da-Lite thru-wall, single-mirror rear-projection modules.
The six projected images are served content, seamlessly edge-blended together and synchronized by Dataton Watchout software residing on HP Z400 workstation computers with nVidia Quadro FX1800 graphics cards – one workstation per projector, with a seventh acting as the master production computer.
To ensure that no gaps between the Da-Plex panels were visible, special ‘H’-channel strips were fabricated out of sheet-metal locally on which each panel could slide into place with a consistent seam and bow angle. Additionally, two smaller side panels, each 2.5-feet long, were made from an opaque plastic material to match the look of the screen when no images are being shown, in order for the wall to ‘fill’ the space around it.
Audio also plays a significant role in the installation, with an M-Audio Audiophile 192 sound card residing inside the master production computer. Sound is delivered to the lobby through a pair of Tannoy QFlex 16 loudspeakers on either side of the videowall. These loudspeakers incorporate digital beam-steering technology, ensuring high quality and intelligibility of both speech and music; even in acoustically challenging spaces such as the entrance lobbies of office buildings. Specifically, in this project the beam-steering was used to ensure that sound quality is not compromised by sound waves bouncing off the lobby’s ceiling.
Five complementary Tannoy CMS401 two-way ceiling loudspeakers are installed above the lobby seating area to ensure consistent audio distribution throughout the space, driven over a 70-volt line by a QSC CX-302V power amplifier.