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To: Bob Strickland who wrote (40039)	4/21/1999 5:44:00 PM
From: John Rieman	Read Replies (1) \| Respond to of 50808

MPEG-2 Demonstration........................... nab.org MPEG-2 Demonstrates Robustness By Jay Ankeney TV Technology In an unprecedented demonstration of digital system interoperability, the Pro-MPEG Forum presented on Tuesday evening 150 pieces of MPEG-2 equipment from 20-plus manufacturers streaming compressed data from end-to-end: from acquisition to contribution to production to post production to distribution. The variety of transmission and emission communication interfaces presented (including DVB-ASI, ATM and others) validated the flexibility with which MPEG data can be sent and received in an electronic theater presentation of MPEG images from around the world, as well as a hands-on exhibit area where attendees could see the various pieces of MPEG equipment seamlessly exchanging audio and video datastreams. Universally Accepted "MPEG-2 is without question the universally accepted standard for digital transmission," said Pro-MPEG Forum Chairman Nick Wells. "There are many benefits to a consistent use of MPEG-2: it's efficient, economical and permits the highest technical quality. MPEG is a technology that enables the great potential and promise of digital technology to be achieved," he said. Having adopted the recommendations of the EBU/SMPTE task force to ensure a smooth exchange of digital MPEG data, the exhibit showed how flexible bitrates and group-of-picture (GOP) structures can be combined for different applications, even though the equipment came from a variety of manufacturers. "The Pro-MPEG Forum now has over 50 member companies who are committed to dealing with issues ranging from interoperability over SDTI and networks to how the video is coded and where the MPEG GOP should be started for most efficient compression," said Ray Baldock, Director of Product Marketing for Tektronix and a member of the Pro-MPEG Forum steering committee. "There are a wide range of parameters which provide the flexibility of MPEG compression that need to be tied down for clean interoperability in different production and display environments," he said. Compression Point At the Pro-MPEG Forum demonstration exhibit, one of the key compression points of MPEG-2 at 50 Mbps (I-frame only) displayed direct SDTI-CP transfer from a Sony MPEG VTR to a Quantel MPED edit server. This compression point is considered crucial for accurate MPEG editing. In addition, both FAST Multimedia and Pinnacle Systems showed MPEG-based nonlinear editing equipment. The Pro-MPEG Forum is an association within the broadcast industry open to all interested participants. It was established in 1998 to expand the work of the EBU/SMPTE Taskforce for Harmonized Standards for the Exchange of Program Material as Bitstreams, whose final report recommended MPEG-2 as one of two key digital compression technologies for professional use in the broadcast environment. Pro-MPEG exhibit participants at NAB99 include (in alphabetical order): Barco, British Telecom, C-Cube, ECI-Telecom, EMC2, FAST Multimedia, Hewlett Packard, IBM, Leitch, Matrox, NDS, NEC, Philips, Pinnacle Systems, Pro Bel/Chyron, Quantel, Snell & Wilcox, Sony, Tektronix, Thomson and Vyvx.