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By PURPLELEC | 03 June 2023 | 0 Comments

Advantages of multimedia audio and video HDMI interface

  The HDMI multimedia audio and video interface is currently used in a very wide range, such as notebooks, TVs, video recorders, cameras, set-top boxes, XBOX and other devices all have HDMI interfaces.
  The latest version of HDMI is HDMI1.4, which can transmit 3D and 4K ultra-high resolution audio and video. However, at present, the vast majority of HDMI still use the HDMI1.3 version standard. HDMI supports a data transmission rate of 5Gbps, and can transmit up to 20 meters. Generally, it can transmit 15 meters, which is enough to handle a 1080p video and an 8-channel audio signal.
  And because a 1080p video and an 8-channel audio signal require less than 4GB/s, HDMI still has a lot of headroom. This allows it to connect the DVD player, receiver and PRR separately with one cable. In addition, HDMI supports EDID and DDC2B, so the device with HDMI has the characteristics of "plug and play", and the signal source and display device will automatically "negotiate" to automatically select the most suitable video/audio format.
hdmi connector
  Advantages of using HDMI products:
  100% digital; no compression, no conversion required; pure digital image and sound (can be seen and heard) directly from source; video and audio signals remain digital from output device to display device; best quality sound and image; for The bandwidth provided by HDTV; support 1080p and higher resolution; support 3D function; support sound return function; support multiple high-definition device connections; All HD video and audio in one cable; replaces up to 8 audio and 5 video cables; reduces cabling complexity; automatic format intelligence*; TV and AV receivers adjust without consumer intervention; video source receives display device Supports video formats and outputs ideal audio and video formats; display device receives video format and image aspect ratio from source as-is; consumer electronics control*; complete control of entire home theater from a single remote control; implements advanced features such as "One-click play".
  The advantage of using HDMI is that only one HDMI cable is needed to transmit audio and video signals at the same time, unlike the current need for multiple cables to connect; at the same time, due to wireless digital/analog or analog/digital conversion, higher audio frequency can be obtained. and video transmission quality.
  For consumers, HDMI technology not only provides clear picture quality, but also greatly simplifies the installation of home theater systems because audio/video uses the same cable. At present, HDMI has launched version 1.4 with new functions, including HDMI Ethernet channel, audio return channel, HDMI 3D function, 4K x 2K video support, more color spaces, micro HDMI connector, and car connection system.

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