什么是电视3.0 Means for Multicast, Mobile, and UHD
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了解更多有关atsc3的信息.0 at 流媒体 East Connect 2021.
Read the complete transcript of this clip:
Sassan Pejhan: 今天, in a traditional streaming service--which I guess most of your audience had experienced--that last mile is a series of individual streams. And if it feels wasteful--you're sending the same content, let's say for a popular sports program earlier, being replicated hundreds of times in that last mile. But the advantage is that those streams can be individualized and customized with custom apps with ATSE 3.0. You can have the best of both worlds. You're broadcasting it to everybody, but through the internet connection, you have the ability to individualize the ads and customize and stitch together for the end user. So this has benefits of spectrum-saving, as well as the benefits of customization.
As far as UHD is concerned, there's a neat technology in 电视3.0 which enables you to provide both HD and UHD signals, but in a way that's very efficient in terms of use of spectrum. We've also talked about mobile devices, which have an issue in terms of battery life, and you don't want to drain them. Especially if you're sending a 4k signal to a mobile device, it's just a waste. One brute-force solution is to have a separate UHD signal, 单独的高清信号, 但这是对频谱的浪费. With new encoding technologies, 电视3.0 enables you to send the HD signal, as receivable by mobile devices through a gateway, but instead of sending a whole independent UHD signal, you send a residual enhancement layer, 正如我们所说的. 是atsc3的电视.0-compatible can take the HD signal out of the layer for the residual and get the UHD signal, or, 在未来, 可能是8K. This allows you to cater to a wide range of devices with different needs without being wasteful and using brute force methods with regards to spectrum. That's one of the really neat advantages.
Nadine Krefetz: 听起来像是规模.
Sassan Pejhan: 可伸缩性. 完全正确. I try to avoid the technical term, but that's exactly what it is. 可扩展视频编码.
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