SME '17: Live Linear Channels—The Next Frontier
All four panelists on the "Live Linear Challenge" panel at the 在线直播 Summit at 流媒体 East agreed on one thing: They're happy when their streams are working, and everything else is secondary. Of course, making sure the streams work isn't always a simple task.
Sports broadcasters are no longer living in the world of 24/7 satellite delivery as viewers move online. "I would say (the biggest problem is stability of) source acquisition,安德烈·瓦德雷说, 导演, 合作伙伴解决方案, NBC数字体育技术. Online content acquisition is just not as stable or predictable.
技术与. 人类的期望
The technological reality of multiplatform delivery means broadcast and digital have different workflows, 元数据, 以及收购问题. Then there's the also the mental leap from broadcast to digital.
"The way you handle actually creating the network is different. We have customers [for whom] we originate their linear channel based on some file-based VOD asset, 也许还会有现场活动. Then we have others [for whom] we downlink their originated stream from Encompass,伊戈尔·奥雷帕说, 高级主管, 产品管理, 康卡斯特技术解决方案.
"Someone who comes from a broadcast world and says 'I need these networks up because we're launching a new digital product,' their expectations what that user experience and how consumers use it is very different than somebody who came from the digital space who hasn't done digital before."
关于延迟
There's a desire to create an experience online that is similar to broadcast, but one of the things that keeps this from happening is latency. “延迟是一个杀手. There's nothing worse than watching a football game and having someone tweet that there was a touchdown [before they see it onscreen], 瓦德雷说. The panel talked about both technical and creative solutions to the latency challenge.
"We're working with our own CDN at 康卡斯特公司, but we partnered with Akamai as well to come up with different ways of packaging HLS video, reducing it down to a 2-second fragments and then repackaging it in a UDP delivery,奥雷弗说。. Akamai showed 8 seconds end-to-end to at an NAB demo of their new Live Origin service.
"There are tricks some of our customers have used which I think are really creative. 它们不会减少延迟, but they give users something to do and look at before the video starts. I think there are ways to help, but there are no silver bullets,奥雷弗说。.
让我赚大钱
"The cost of doing live streaming [we can't] justify,Guy Tasaka说, 副总裁兼首席数字官, 卡尔金斯媒体, a local media company who may have as few as 200 viewers at any one time online. Their choice is live-to-tape broadcasting for online delivery. Even with their "almost live" content, they are still able to get high ad rates—though their audiences might be small, advertisers are able to target on a more granular level than with a larger audience.
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