HDMI v2.1 spec released with 10K and Dynamic HDR support

HDMI v2.1 spec released with 10K and Dynamic HDR support

And if 8K isn't enough pixels for you, there are a number of 10K formats supported for a 10,240×4,320 resolution, intended for specialized commercial applications.

Today the final specification for HDMI 2.1 has been released, and its capabilities are fairly impressive, especially if you are still using 1920x1080 displays and media.

HDMI 2.1 supports a whole host of new video outputs including 4K video at 120Hz and 8K video at 60Hz, along with theoretically supporting 10K videos. HDR support is extended from a using a single image descriptor for an entire piece of content to a new Dynamic HDR mode that can use a different image descriptor optimized on a screen-by-screen or even frame-by-frame basis. It also reduces interference with nearby wireless devices because it features exceptionally low EMI (electro-magnetic interference). The new Enhanced Audio Return Channel (eARC) is backwards-compatible with the existing ARC and has support for uncompressed and object-based audio formats like DTS:X and Dolby Atmos.

The forum's table below shows HDMI feature support across all versions.

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Higher video resolutions support a range of high resolutions and faster refresh rates including 8K60Hz and 4K120Hz for immersive viewing and fast-action detail.

It introduces some major improvements over the predecessor, HDMI 2.0, such as improved bandwidth speed of 48Gbps, up from 18Gbps seen in the predecessor.

According to details provided by the HDMI Forum, the new HDMI v2.1 specification will be backward compatible with all previous HDMI standards but will also need the new ultra high-speed HDMI cable for those new upgrades. The new Quick Media Switching feature allows changes in refresh rates and resolution without the customary and annoying display blackout. Finally, Quick Frame Transport is there to reduce latency. There's also Quick Media Switching (QMS) as well as Auto Low Latency Mode (ALLM) which will automatically set the ideal latency for the smoothest experience. The HDMI Forum now has a membership of 92 companies, and is actively inviting more companies to apply for membership and help shape the future of HDMI technology.

"The HDMI Forum's mission is to develop specifications meeting market needs, growing demands for higher performance, and to enable future product opportunities", says Robert Blanchard of Sony Electronics, president of the HDMI Forum. For more information on the HDMI Forum or on becoming a member please visit www.hdmiforum.org.

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