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(High-Definition Multimedia Interface) A digital interface for audio and video that provides a single-cable solution for home theater and consumer electronics equipment such as TVs, Blu-ray/DVD players and set-top boxes. Introduced in 2002, one HDMI cable took the place of nine different analog audio and video cables.

HDMI supports eight channels of 24-bit uncompressed audio at 192kHz and 4K video resolution up to 4096x2160 (as of HDMI 1.4). It also provides copy protection, A/V equipment control, 5 volts of power and compatibility with DVI and DisplayPort interfaces. For more HDMI details, look up the following:

Version summary, see HDMI versions.
Cable versions, see HDMI cable types.
A/V control, see HDMI CEC.
Compatibility, see HDMI-DVI compatibility and DisplayPort.
Audio return channel, see HDMI ARC.
Copy protection, see HDCP.

Common 19-Pin Connectors
Type A is for TVs and home theater equipment, while camcorders and cellphones use Type C and D. A more secure Type E is used in vehicles, and a 29-pin Type B supports dual-link DVI resolution (see DVI).

HDMI Vs. All the Others
This earlier Roku streaming hub was on the market during the transition stage from analog to digital TV. See A/V ports.

An HDMI Switch
HDMI switches let several HDMI sources plug into a TV with only one HDMI input. This Oppo unit switches three inputs. See HDMI switch. (Image courtesy of Oppo Digital, Inc., www.oppodigital.com)
References in periodicals archive ?
These standards-setting bodies include the Digital Display Working Group (DDWG), High Definition Multimedia Interface organization (HDMI), the High Definition Content Protection organization (HDCP) and the Institute of Electrical and Electronics Engineers (IEEE).
Molex Incorporated (NASDAQ: MOLX) and (NASDAQ: MOLXA) today announced that it will be awarded a Technology & Engineering Emmy([R]) Award from the National Academy of Television Arts & Sciences (NATAS) in recognition of its pioneering connector design for High Definition Multimedia Interface (HDMI*).
HDMI, the HDMI logo and High Definition Multimedia Interface are trademarks of HDMI Licensing, LLC.
HDMI - High Definition Multimedia Interface - all digital audio/visual interface transmits uncompressed streams

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