When Is Low Latency Critical to Streaming QoE?
Learn more about streaming latency at 流媒体东部2022.
Read the complete transcript of this clip:
杰森·Thibeault: Is low latency always a top priority for ensuring a high quality of experience?
杰洛德Venema: 绝对不是. But it very much depends on what you're trying to do. That ties in with my comment from before, which is, the moment you're going bi-directional, yes. If there's some sort of an interaction bi-directional--and I don't mean just bi-directional audio/video; I mean, bi-directional communication of some sort... We've got one customer, for example, that's doing a remote feed. Their interactions are all just triggering events in that remote system. They're interacting remotely with that system. 不过他们在看现场直播. And there's other folks that are in that other system receiving those events. So there's a bi-directional communication. 它不是音频/视频. They're not sending their feed in two directions or anything. 这不像我们在这里做的事. But there is an interaction that's taking place and that doesn't happen in real time. 这种经历很可怕，对吧? 它只是受苦.
When it's a one-way experience, you don't care. 如果是单向信号，那就无所谓了. But those those are becoming less common because of the social aspect. Like my example of Twitter a minute ago. That's a completely sideband thing that's happening. 所以如果你正在经历什么, and there's any sort of sideband experience that can happen faster than what you're providing, you're going to get a disjointed experience out of it. So it is really important to understand, 不仅仅是你的应用, but other things that are happening around it or your deployment or your production or whatever it is. There's things that happen in sideband channels that can impact that real-time aspect necessity as well.
So I would say, I would say there's absolutely times when it's not. If you're just watching a prerecorded video, great, watch it on your own time, who cares? 这完全无关紧要. But any time there's an interaction where you're trying to see something that's happened in the real world, there's some sort of interactive component, all of the AR and VR stuff that's really kicking off. We saw Facebook's announcement recently. 都是互动的. The moment you've got that, you need super, super, super low latency.
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