AV Technology - February/March 2009 - (Page 32) precedent NOTABLE PROJECTS INAUGURAL SOUND In one of the most widely viewed civic events in history, Baltimore-based audio systems provider Maryland Sound (MSI) deployed JBL VerTec line arrays as the main PA system for the inauguration of President Barack Obama on January 20. The ceremony took place at the United States Capitol in Washington D.C., with a crowd of more than 1.5 million onlookers extending two miles from the Capitol to the Lincoln Memorial on the Potomac River, and along Pennsylvania Avenue to the White House. With a total audience “in the streets” surrounding the event site estimated to have exceeded two million, the event defined a new standard for large-scale distributed outdoor sound reinforcement systems. MSI, with sound designer and front of house engineer Pat Baltzell of Baltzell Audio Design, configured an audio system using JBL VerTec VT4889 line array elements. In total, 15 of MSI’s custom-built, ground-stacked line array towers, ranging from four to 14 VT4889 loudspeakers each, were dispersed throughout the Mall area. Crown I-Tech amplifiers, configured with Harman HiQnet System Architect software for remote control and monitoring, powered the system. Video Communication Improves Collaboration V ideo communication tools can boost openness and discussions in online meetings, leading to more creativity and faster decision-making, according to a new study published by Cisco. They can also help to reduce the effects of culture and personality clashes. However, video communication can also heighten anxiety and self-consciousness. “Successful Video Communication”, con- ducted by business psychologists Pearn Kandola, is the latest in a series commissioned by Cisco. How people assess another person’s trustworthiness is based largely on behavior and body language, with the spoken word contributing only 7 percent of a person’s assessment, yet many businesses still rely on telephone and audio conferencing for team collaboration. Source: Cisco ROBOT-ASSISTED TELESURGERY France’s CRAN (Research Center for Automatic Control) is using HaiVision Systems hai1000 codec systems to support the study of robot-assisted telesurgery. Implemented as part of the RALTT (Robotic Assisted Laparoscopic Telementoring and Telesurgery) project at the hospital of Nancy-Brabois in France, HaiVision’s advanced H.264/MPEG-4 AVC compression technology enables reliable low-latency transfer of video over a VPN linking two test sites. The project was created to study the feasibility of remote surgery relying on assisted robots with the doctor and patient at two different locations. HaiVision’s advanced MAKO-HD provides surgeons with very fast and reliable video feedback over a long-distance link. A delay of 1 or 2 seconds is not acceptable for surgical applications, so the MAKO-HD’s ability to reduce latency below 100 ms is critical to the success of CRAN’s tests. 32 | AV TECHNOLOGY | february | march 2009 http://www.vqseries.com http://www.vqseries.com
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