HDMI 2.0 increases the maximum bandwidth to 18.0Gbit/s. [113] [114] [115] HDMI 2.0 uses TMDS encoding for video transmission like previous versions, giving it a maximum video bandwidth of 14.4Gbit/s. This enables HDMI 2.0 to carry 4K video at 60Hz with 24bit/px color depth. [113] [116] [117] Other features of HDMI 2.0 include support for the Rec. 2020 color space, up to 32 audio channels, up to 1536kHz audio sample frequency, dual video streams to multiple users on the same screen, up to four audio streams, 4:2:0 chroma subsampling, 25fps 3D formats, support for the 21:9 aspect ratio, dynamic synchronization of video and audio streams, the HE-AAC and DRA audio standards, improved 3D capability, and additional CEC functions. [113] [118] [119] Uncompressed 10 bpc color depth and RGB or Y′C BC R 4:4:4 color format are assumed on this table except where noted. a b c Michael Stelts (April 17, 2002). "HDMI– Presentation for the HDMI Working Group" (PDF). Copy Protection Technical Working Group. Archived from the original (PDF) on January 6, 2016 . Retrieved June 23, 2008. Simon Baker (December 13, 2021). "When HDMI 2.1 Isn't HDMI 2.1 - The Confusing World of the Standard, "Fake HDMI 2.1" and Likely Future Abuse". www.tftcentral.co.uk.

This section may require cleanup to meet Wikipedia's quality standards. The specific problem is: Lead is out-of-date, section reads likes a timeline. Please help improve this section if you can. ( June 2019) ( Learn how and when to remove this template message) HDMI 1.2a was released on December14, 2005 and fully specifies Consumer Electronic Control (CEC) features, command sets and CEC compliance tests. [96] Version 1.3 [ edit ] a b "Launch of HDMI 1.4 Specification" (PDF). HDMI.org. October 6, 2009. Archived from the original (PDF) on January 6, 2016 . Retrieved November 16, 2009.Jeff Boccaccio (December 28, 2007). "Inside HDMI CEC: The Little-Known Control Feature". CEPro . Retrieved December 7, 2008. Total transmission bit rate is equal to the number of data channels multiplied by the bit rate per channel (binary digits transmitted per second). Each channel transmits one bit (binary digit) per signal, and signals at ten times the character rate. Therefore, the total transmission bit rate (in Mbit/s) = 10 × (character rate in MHz) × (# of data channels). a b c "HDMI 1.3 doubles bandwidth, delivers billions of colors for HDTVs". hdmi.org. HDMI Licensing, LLC. June 22, 2006. Archived from the original on February 22, 2008 . Retrieved June 19, 2008. Automotive Connection System". HDMI Licensing. Archived from the original on August 21, 2012 . Retrieved August 6, 2012.

HDMI-CEC to USB and RS-232 bridge/converter". RainShadow Technology. Archived from the original on November 29, 2011 . Retrieved November 20, 2011. HDMI Licensing, LLC Releases Alternate Mode for USB Type-C Connector". hdmi.org (Press release). September 1, 2016. Archived from the original on December 24, 2018 . Retrieved September 11, 2016. a b c d "DisplayPort Technical Overview, May 2010" (PDF). VESA. May 23, 2010. Archived from the original (PDF) on July 26, 2011.

Frequently Asked Questions

a b Even for a compressed audio codec that a given HDMI device cannot transport, the source device may be able to decode the audio codec and transmit the audio as uncompressed LPCM. a b c d "HDMI Licensing, LLC Announces Features of the Upcoming HDMI Specification Version 1.4". HDMI Licensing, LLC. May 28, 2009. Archived from the original on June 1, 2009 . Retrieved May 28, 2009. Adopted by 750+ manufacturers, HDMI is a must-have for consumer electronics". HDMI.org. January 5, 2008. Archived from the original on April 14, 2016 . Retrieved July 2, 2008. a b c "HDMI Specification Version 1.2a" (PDF). HDMI Licensing, LLC. Archived from the original (PDF) on August 26, 2017 . Retrieved August 25, 2017.

HDMI 1.2 was released on August8, 2005, and added the option of One Bit Audio, used on Super Audio CDs, at up to 8 channels. To make HDMI more suitable for use on PC devices, version 1.2 also removed the requirement that only explicitly supported formats be used. It added the ability for manufacturers to create vendor-specific formats, allowing any arbitrary resolution and refresh rate rather than being limited to a pre-defined list of supported formats. In addition, it added explicit support for several new formats including 720p at 100 and 120Hz and relaxed the pixel format support requirements so that sources with only native RGB output (PC sources) would not be required to support Y′C BC R output. [96] :§6.2.3 Samsung (February 24, 2006). "Samsung Camera Releases New High-Performance Digimax L85 Featuring World's First High Definition Multimedia Interface". dpreview.com . Retrieved July 1, 2008. A new certification program was introduced in October 2015 to certify that cables work at the 18Gbit/s maximum bandwidth of the HDMI 2.0 specification. [79] In addition to expanding the set of cable testing requirements, the certification program introduces an EMI test to ensure cables minimize interference with wireless signals. These cables are marked with an anti-counterfeiting authentication label and are defined as: [80] HDMI 2.1: The Need For Speed Continues". HDTV Magazine, Ltd. HDTV Expert. January 18, 2017. Archived from the original on August 26, 2017 . Retrieved January 31, 2017.

Support

Manufacturer:: HDMI 1.4:: Finding the Right Cable". HDMI. Archived from the original on May 12, 2011 . Retrieved January 12, 2011. HDMI implements the ANSI/CTA-861 standard, which defines video formats and waveforms, transport of compressed and uncompressed LPCM audio, auxiliary data, and implementations of the VESA EDID. [4] [5] :p. III CEA-861 signals carried by HDMI are electrically compatible with the CEA-861 signals used by the Digital Visual Interface (DVI). No signal conversion is necessary, nor is there a loss of video quality when a DVI-to-HDMI adapter is used. [5] :§C The Consumer Electronics Control (CEC) capability allows HDMI devices to control each other when necessary and allows the user to operate multiple devices with one handheld remote control device. [5] :§6.3