HDMI 2.1a is expected at CES 2022, which is still Despite the cancellation of several companies It should take place on-site, given it in more detail. According to officials, the new standard will in any case contain what is known as source-based mapping (SBTM). This can also be sent via firmware updates for devices that have already been released. Ultimately, new technology should improve tonal mapping.
As an example, HDMI LA itself cites the case of broadcast provider z. B. It transmits a video in HDR format, thumbnails are available in SDR format and at the same time the menu overlay is displayed as a graphic surface. In such a case, TVs and monitors will display everything in SDR or HDR format. However, using SBTM, that is, setting the tone in the playback device, the correct tuning of all individual elements can be made.
The image above shows a simulation example. With SBTM, more details can be identified and the snow will not be “overly”. However, this only works if the tone mapping is carried out at the source and not through a TV or monitor. SBTM should take care of this in the background. So this is clearly in no way a new HDR standard or portrait mode.
The principle is almost the same as HGiG, in that it is used for games, but it is more widely used for different content. It can be combined with TVs, monitors, projectors, computers, game consoles as well as set-top boxes. However, the deciding factor is that both the trigger and display must be able to master the SBTM. New cables are not required, and already available HDMI cables can still be used.
those:
HDMI LA . port
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