The function of the hdmi interface is to send uncompressed audio and video signals; the high-definition multimedia interface HDMI is a fully digital video and sound transmission interface; HDMI can be used for set-top boxes, DVD players, personal computers, and TV game consoles , integrated amplifiers, digital audio and television equipment.
The operating environment of this article: Windows 7 system, Dell G3 computer.
The function is to send uncompressed audio and video signals.
High Definition Multimedia Interface (HDMI) is a fully digital video and sound sending interface, which is used to send uncompressed audio and video signals.
HDMI can be used in set-top boxes, DVD players, personal computers, video game consoles, integrated amplifiers, digital audio and televisions and other equipment. HDMI can send audio and video signals at the same time, making it convenient for users to use.
Extended information:
The cable length limitation of HDMI is one of its main problems. In self-tests by some consumers, it was reported that the standard 28AWG specification HDMI copper cable is approximately more than 5 meters long. Signal attenuation begins. This length is usually not long enough to connect the projector to the computer.
The HDMI organization does not recognize this restriction. Its HDMI FAQ page states: "Developers have seen cables pass through a cable no shorter than ten meters without an "adapter". HDMI "Standard Cable" Commitment Test".
Increasing the diameter of the copper wire in the cable to reduce impedance is one of the ways to effectively extend the cable length. There are also reports that 24AWG cable performs better than 28AWG.
Currently, a single HDMI equalizer IC can increase the maximum length of 24AWG HDMI cable to 50 meters.
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