A switch also is useful if your display has a limited number of HDMI ports because it allows you to plug up to five separate sources into the switch so that you don't have to plug and unplug different sources. Simply put, an HDMI switch allows you to output audio and video from multiple sources, one at a time, such as viewing output from a number of security cameras. Read more on Chroma Subsampling in our HDMI Technology Primer. 4:2:2 and 4:2:0 subsampling represent progressively greater levels of compression. 4:4:4 means video is transmitted with full color data and no subsampling. It reduces the amount of color data in a video signal in such a way that there is little or no visible impact on image quality. What is Chroma Subsampling? – Chroma subsampling is a form of video data compression. If you're jumping into 8K, you will need to make your connections with an 8K/60-compatible HDMI 2.1 cable.įor a more detailed explanation of HDMI video resolutions, refer to our HDMI Technology Primer. Firmware updates for the consoles may be needed for 8K content when such content becomes available. The first HDMI sources that are compatible with 8K video are gaming consoles like the PS5 and Xbox Series X, and 8K TVs are becoming widely available. The next-generation version 2.1 of HDMI for 8K (7680 x 432) video has arrived. All of the capabilities of the cable are considered in this handshake. For example, if a 1080p video source is connected to a 4K TV, the result will be a 1080p image. When HDMI devices are connected or powered on, they use a process known as HDMI Handshake to determine the lowest common denominator for video and audio. Keep in mind that images will display at the level of the lowest-resolution component in the setup.
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