It turned out that this was the cause when watching live football when people cheered for a while to see their side scoring

The same live match but must see the slower goal than the neighbor is what makes many football fans feel uncomfortable, especially the stressful shootout in the dramatic match of U23 football team Vietnam in Asia U23 tournament. While neighbors shouted to celebrate the goal of the home team, after a while their TV came to the scene of Vietnamese players scoring. This phenomenon even occurs with two TVs located close together, the same channel.

The cause of this phenomenon is that families are using multiple sources with different technologies, making the playback time asynchronous at the same time. In the past, TV viewers mostly used analog television from an outdoor antenna or cable TV. But now there are many signaling technologies to choose from such as digital receivers, satellite TV, digital terrestrial, online TV viewing or web sites on phones and computers.

Using different broadcast technologies makes the signal transmitted to the TV fast, slow and different.

Among them, analog television has the fastest signal back even when the image quality is the worst, then to cable TV, because the signal is less than the processing stage, is brought almost directly from the station to the TV.

Digital television is a system for broadcasting and receiving video and audio signals by digital signals. Viewing on TV requires a tailored solution, such as an HD cable head.

Internet television and digital signals must go through service providers to receive, convert to digital, broadcast to their servers, and then download and play on devices such as SmartTV, smartphone or computer. Because . It takes a lot of processing to transfer content to the TV, so TV over the Internet often has the biggest delay.

Having to watch the goal on this TV slower than another TV in the same live match can still happen in the same family and sharing a television provider. Because the TV connects directly to the signal from the cable (not through a processing stage, switching to digital) will give a few seconds faster than a TV using an HD cable receiver.

Fixing the latency of TV images is not possible, as this relates to the technology and services that the TV system uses.

Currently, analog television has stopped broadcasting and replaced by digital television in some big cities like Hanoi, Ho Chi Minh City or Da Nang. Users must use the receiver and decode to get the best image quality. This means that the signal is slower than a normal cable TV.

To avoid this situation in the final match of U23 Vietnam on January 27, viewers should use common TV sources instead of watching online.

See more:

1. How to see live the final U23 Vietnam - Uzbekistan U23 on the Internet at 15h on January 27
2. Change your Facebook profile to cheer U23 Vietnam
3. The set of humorous humor celebrates the victory of Vietnam U23 team in the final