The Videoconferencing Image Is Unclear About Which Devices

The videoconferencing image is unclear about which devices

The videoconferencing image is not clear about which devices are involved: When the company holds a network video conference, it is most afraid of the network failure, or the video and audio problems, when we see the video conference image is not clear, then what would be the problem? ?

The general picture is not clear and includes the following conditions: poor edge focus, low brightness, ghosting, interference fringe stacking (source resolution too high), or image aliasing (frame loss).Even so we can't immediately determine that a product has a problem. The image display is a system that mainly includes video signal sources such as DVDs, conference cameras, computers, and control transmission products such as matrix switching systems (VGA matrix, video matrix, etc.). Audio and video matrix, RGB matrix, distributor, signal transmission cable, etc., to the display terminal.

Tenveo (http://www.hktenveo.com) teaches you the following solutions:

A.Exclusion method: Exclude all devices one by one. Check whether the resolution of the signal source is the same as the resolution of the display terminal. Only in this way can you form a point-to-point display. The brightness of the image can also be significantly improved. If it is a video signal, To see if the system can adapt to the display terminal, if the requirements of the display terminal cannot be met, the nature of the signal can be changed by changing the device or adding a conversion device. If the scaler is used, the video signal VIDEO can be improved to a VGA signal. . Second, see if the bandwidth of the splitter and matrix switcher and its impedance to the signal source can make the loss of the image within the standard range. Finally, it is checked whether the display device is focused and converged, and whether the signal processing circuit is good. The most important thing is: during construction, the signal connector is strictly controlled, the interface is firm, the cables are arranged neatly, the power line is separated from the signal line, and it must be grounded reliably. If the UPS power supply is not used, the grounding of the AC power supply must be achieved. The two ends of the line are marked to facilitate inspection and management.

B.Analytical method: According to the fault phenomenon, if not synchronized, check the synchronization interface and transmission cable of the equipment, and check the synchronization frequency range between the signal source and the display terminal. By analyzing and shortening the inspection time, the image is ghosted. Look at whether the transmission cable is too long or too thin. The solution is to change the line, or increase the signal amplifier and other equipment. Poor focus can adjust the display terminal and so on.

C.One for the second law: refers to the entire failure, can be divided into inspections, as long as there is a problem with a certain segment, and then checked out and eliminated, the problem is solved, you can save time on other parts of the inspection, If you have any questions, please feel free to contact us.