Which ports should I choose for the 4k HD audio and video matrix switching matrix? Did you choose the right one?
Release date：2021-07-30
Source：BeingHD
Pageviews：-
At present, most 4k high-definition audio and video matrix switching matrices support high-definition video output, and the output interface of the 4k high-definition audio and video matrix switching matrix has many different types, such as: VGA, HD, DVI and other interface types. So how to choose the interface type, and what is the difference between them? First of all, we need to realize that the large display screens on the project site generally have a variety of different types of interfaces, which requires us to select the interface type of the 4k high-definition audio and video matrix switching matrix, which is related to a better display effect.
Most of the time, it is recommended to choose the 4k high-definition audio and video matrix switching matrix with DVI or HD high-definition interface, because they are based on the advantages of digital formats and have a high guarantee for the integrity of the video. The HD interface is recommended for these two interface types. The following two 4k high-definition audio and video matrix switching matrix products analyze the DVI and HD interfaces. Here, BingHD's matrix is selected because the 4k high-definition audio and video matrix switching matrix is a relatively mature product with rich application experience and
representative.
First, the transmission of DVI signals completely adopts a digital format, and the picture quality is guaranteed. There are three types of DVI interfaces, namely DVI-Digital (DVI-D), DVI-Analog (DVI-A) and DVI-Integrated (DVI-I). The difference is that DVI-D only supports digital display devices; while DVI-A is similar to the VGA interface and uses analog signal transmission; while DVI-I supports both digital display and analog display, and can be compatible with DVI-D device of. These need to be distinguished when selecting 4k HD audio and video matrix switching matrix.
Second, the HD interface uses a smaller interface than DVI and can transmit audio, which is unmatched by DVI. HD signal transmission does not require a separate audio cable. At the same time, the length of the cable can reach more than 20 meters (DVI cable above 8 meters will affect the image quality). Compared with the DVI interface, HD not only has features such as higher bandwidth and higher resolution, but also integrates video transmission and audio transmission, which greatly simplifies cable connection settings. HD can also be backward compatible with DVI, as long as an adapter is added, the two can be interconnected. Therefore, when choosing the 4k high-definition audio and video matrix switching matrix interface, the 4k high-definition audio and video matrix switching matrix of the HD interface is obviously more advantageous.
From the above description, everyone should clearly know that there is still a certain difference between HD and DVI signals, and the relative application environment and differences are also different. Then if you have any questions about it, please do not hesitate contact us.
