Why when watching live football, have a fast TV, have a slow TV?

The difference between cable TV, the Internet or the digital top makes this TV image ten seconds faster than other TVs.

Glad with the victory, after the semi-final match on January 23, but Mr. Khoa (Tay Ho, Hanoi) is still resentful because in the whole series of intense circulation, many times he hears the sound of goods. The neighbors shouted, celebrating for a while, when his TV came to the part of the Vietnamese player who made the mark. Ms. Thanh Binh (Cau Giay, Hanoi) also faced a similar situation when watching the live match in the office. Although watching from the same channel, this corner TV is a bit faster than the other TV.

The same thing but must see the goal slower than neighbors is what often happens to TV viewers, Mr. Dong, a player who played long-standing audio-visual equipment shared. The reason is that families are using multiple sources with different technologies, making playback time out of sync at the same time. For example, Ms. Binh's case was viewed by a TV via Internet TV service and a TV used on cable TV, even though she watched the same channel.

TV uses different broadcasting technologies so the image is different, slow and slow.

Years ago, TV viewers mostly used analog television from outdoor antennas or cable TV, time, they could choose to watch from digital receiver, satellite TV, digital face Land, Even, watch online via Internet TV or websites on phones and computers.

In the above signaling technologies, analog television has the poorest image quality, but the fastest signal, then to cable TV, because the signal is taken almost directly from the radio to the TV, via Less processing.

Digital television is a system that emits, receives audio and video signals using digital signals, as opposed to previous analog (analog) signals used by traditional broadcasters. TV data is digitally compressed and requires decoding by decoder designed specifically for television, eg HD cable heads.

Internet TV , which often has the largest delay due to digital signals, must also go through the service provider to receive, convert to digital, broadcast to their server, only to download and play on devices. equipment such as SmartTV, smartphone or computer .

Television over the Internet takes many processing stages to transfer content to the TV.

According to Dong, in the same family and sharing a television provider, it is still possible for this room to show a goal in front of the other room, even watching the same channel and the first match. A cable-connected TV will give the goal a few seconds faster than a TV set using an HD cable receiver, because the signal is not through a digital processing or conversion.

According to experienced people, fixing the latency of TV images is impossible, as this relates to the technology and services that the TV system uses.

In some big cities like Hanoi, Ho Chi Minh City or Da Nang, analog television has stopped broadcasting and replaced by digital television. If you want to have beautiful, high-resolution images like HD, users are forced to use the receiver and decoder, which means the image is slower than a TV using only regular cables.

The same TV channel, but watching on smartphones over the Internet can be much slower than watching TV with cable TV.

However, in order to avoid having to celebrate the goal too late when watching the upcoming U23 final match in Vietnam, viewers should use regular TV sources instead of watching online. In return, with Internet TV, thanks to the extensive features, users can easily review situations, goals or review the game without waiting for the broadcast schedule of the channel.