Case Study: Remote Video Editing & Production

During the 2004 Summer Olympic Games in Athens Greece, the athletes weren’t the only ones setting records. Radio-Canada/Canadian Broadcasting Corporation (CBC) in Montreal Quebec also achieved a milestone. Instead of moving its video editing and production operation to Athens, CBC kept it in Montreal where CBC staff edited live video feeds, produced the final version and broadcast it throughout Canada.

Compared to the traditional method of moving equipment, people and temporary facilities on-site for major televised events like the Olympics, keeping video production at the home location saves a significant amount of time and money.



Now, Radio-Canada is preparing for the Beijing Olympic Games in 2008, where, once again, they will conduct video editing and production half a world away from the live event. As such, CBC must identify the impact of long haul delay on its video applications. They expect transmission time from Beijing to Montreal to be as long as 300 ms in each direction, significantly higher than the 60 ms Athens to Montreal transmission time.

From China to Canada, video traffic will be carried on a SONET OC-3 link (155 Mbps). On this network, CBC will build ATM Permanent Virtual Circuits (PVC's) of various sizes, upon which they need to simulate propagation delays. CBC chose the Anue Network Emulator in order to provide "dialable latency measurements," of up to 500 ms. (At OC-3 data rates, Anue’s M Series Emulator enables up to 4 seconds of delay, which more than met these requirements). CBC also needed a product that has multiple interfaces so that both GigE and SONET links could be emulated with the same hardware platform.

Today, Broadcast Engineers at CBC are testing their applications on a simulated WAN using Anue’s MSDG312, SONET/SDH OC3/STM1 and OC12/STM4 Signal Delay Emulator. With the help of the Anue Tester, they will be able to ensure with confidence that their process of editing and producing live video received from remote locations works as expected.



Since 1997, Gillaspy Associates has built a solid reputation for developing strong relationships with our customers by providing quality solutions and ongoing support.

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