S-Video port

S-Video's full English name is Separate Video. In order to achieve better video effects, people began to search for a faster, better, higher-definition video transmission method. This is the current S-Video (also known as two-component video Interface), Separate Video means that the Video signal is transmitted separately, that is, the chroma signal C and the luminance signal Y are separated on the basis of the AV interface, and are then transmitted in different channels, and it appears and developed in the last century. In the late 1990s, a standard 4-core (without sound effects) or an extended 7-core (with sound effects) is usually used. Video devices with S-Video interfaces (such as analog video capture/editing cards for televisions and quasi-professional monitor TV cards/TV boxes and video projection devices, etc.) are currently common, as compared to AV interfaces because it no longer takes place Y/C mixed transmission, so there is no longer need for bright color separation and decoding work, and due to the use of separate transmission channels, image distortion caused by signal crosstalk in the video equipment is largely avoided, and the image is greatly improved. Sharpness, but S-Video still mixes the two channels of color difference signals (Cr Cb) into one chroma signal C for transmission and then decodes them in the display device to Cb and Cr for processing. This will still bring some signals. Distortion due to loss (this distortion is small but can still be found when testing under strict broadcast video equipment), and since the mixing of Cr Cb results in a limited bandwidth of the chroma signal, S-Video is already Better but still far from perfection, S-Video is not the best, but considering other factors such as the current market conditions and comprehensive costs, It is the most common application of video interface.