With the fierceness of the Rio Olympics, TVs that have been "eliminated" by netizens over the years have once again detonated living room entertainment. Even if you have more apps and more convenient smart devices, you wo n’t be able to watch the Olympics on TV. So how do you watch TV for the Olympics this year? Can 4K video that has been popular for many years come in handy?
In June of this year, NBC Olympics, a subsidiary of the National Broadcasting Corporation, stated that during the Rio Olympics, 4K video ultra-high-definition program signals will be provided to broadcast a clearer picture of the game. However, in July, the US NBC's original plan for 4K video ultra-high-definition live broadcast of the Olympic Games was canceled, and the 4K video live broadcast was changed to the form of recording and broadcasting. It can be seen that 4K live video is not yet formed in the United States, which attaches the most importance to living room entertainment, and it has a farther distance in China. So what's the difference between 4K video TV and 4K video programs on the market?
The first thing to be clarified is the concept of 4K video. It is led by Sony and has increased the video resolution to 3840 & TImes; 2160, which is four times the quality of Full HD (1920 & TImes; 1080) that we often watch now. Only a TV that can play this format can be called a 4K video TV.
According to the survey, there are two main types of fake 4K video TVs on the market. One is equipped with a 4K video screen, the built-in chip does not have the ability to play 4K video video, or the decoding format is not complete; the other is on the screen. As a result, manufacturers cut corners, and the entire screen is only more than 6 million pixels, while the real 4K video screen should have more than 8.2 million pixels.
This kind of cottage 4K video TV is relatively easy to distinguish. The China Household Electrical Appliances Association introduced a way to distinguish between true and false 4K video TVs: false 4K video has a blurry color, and if you look with a magnifying glass, you can see white lines.
But can you see 4K video programs with true 4K video TV? I went to a friend's house to enjoy his newly purchased 4K video TV to watch the European Cup live broadcast, but I couldn't see why. But when this TV was put on display in the store, it was striking and the picture was extremely expressive. The difference lies in the quality of the film. At present, the highest standard of live TV in China is 1080P HD, so I watched the European Cup live broadcast, but only watched HD on a TV with 4K video capability; the video displayed in the store is standard 4K video content.
Although the live broadcast is not yet visible, various 4K video resources on the Internet have emerged in recent years. Would n’t it be a problem to watch 4K video movies? There is also a 4K video movie on a cable TV set-top box in Beijing. But the author uses a high-definition set-top box, and this 4K video movie will definitely not be realized. Even if the 4K video set-top box is replaced, it still fails to meet the 4K video standard. The reason for this lies in the network.
Imagine how much bandwidth is required to transmit 4K video standard video resources? According to industry insiders, 30M to 40M of dedicated broadband is generally needed to achieve the 4K video transmission standard. In other words, a family must meet the standard of 100M fiber. And this standard is difficult to achieve on the cable TV network, and the transmission speed cannot be achieved without optical fiber.
This shows that 4K video that has been circulating for many years is really not so easy to achieve.
It can be seen from the above analysis that neither TV terminals nor 4K video sources are currently difficult. The real difficulty lies in high-bandwidth network set-top boxes, and this is not an area where cable TV is good at. Coincidentally, IPTV, promoted by network operators over the years, has the advantage of a broadband network, which makes it the only possibility to watch 4K video TV.
It is understood that at the beginning of this year, Beijing IPTV announced that its users exceeded 1 million, and in May this year announced the launch of 4K video ultra-high-definition Unicom broadband TV service. From a technical point of view, the 100M and 200M broadband provided by Beijing Unicom makes the transmission of 4K video possible. In addition, IPTV's 4K video set-top box adopts dual channels. That is, the high-definition video channel and the ordinary Internet channel are independent of each other, and watching high-definition TV does not affect high-speed Internet access.
The technology has reached the standard, can the content keep up? In addition to the live broadcast of regular TV stations and the entire live broadcast of the Rio Olympics, Beijing IPTV also has a large number of 4K video resources for movies and TV series. Not only that, the country's first 4K live video channel has also been launched.
In July this year, China Internet TV subsidiary, China IPTV integrated broadcast control platform operator, fell in love with TV Media (Beijing) Co., Ltd. today released the "Love 4K Video" live channel. This channel is the first live IPTV channel based on the 4K video ultra-high-definition standard. Domestic IPTV viewers can watch 4K video event content through 4K live video channels after a few developed countries such as the United States, Japan, South Korea, and Switzerland.
Although the 4K video live broadcast of the Rio Olympics is not seen by people all over the world, IPTV is definitely the foundation of the future 4K video live broadcast. IPTV, are you ready?
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