One of the first features you need to consider when purchasing multiviewers is the number of inputs. HDMI Multiviewer features to consider include the number and type of inputs, and whether you need to work with digital or analog systems. Multiviewers are also helpful for security systems, as you can monitor different surveillance feeds simultaneously. They're also great on film sets as they allow directors to see multiple camera angles recording simultaneously from a single scene. Multiviewers are used frequently in broadcast and production control rooms because they display multiple camera angles, and allow you to quickly select the main live feed. Multiviewers are ideal for professional settings when managing several videos or feeds at one time. Automotive connection system: With the increase of in-car digital audio and video devices, HDMI 1.4 can handle the vibration, heat, and noise that may affect the quality of audio and video reproduction.Video multiviewers allow you to monitor multiple video signals on a single screen.
The micro-connector supports up to 1080p resolution. Micro-connector: Although an HDMI mini-connector was introduced in version 1.3, as devices continued to get smaller, an HDMI micro-connector was introduced for use in even smaller devices, such as smartphones.Expanded color support for digital cameras: Allows better color reproduction when displaying digital still photos from HDMI-connected digital still cameras.4K x 2K resolution support: HDMI 1.4 can accommodate 4K resolution at a 30-hertz frame rate.
An added update (HDMI 1.4b, released October 2011) extended 3D capability by allowing the transfer of 3D video at 120 Hz (60 Hz per eye). An update (HDMI 1.4a, released March 2010) adds support for 3D formats that may be used in TV broadcasts, cable, and satellite feeds. It can pass two simultaneous 1080p signals using one connection.
It passes audio/video signals from the receiver to the TV and also passes audio originating from the TV's tuner to the receiver.
To access the full capabilities of HDMI 2.1 enabled devices, an HDMI cable that supports a 48 Gbps transfer rate is required. Cable support: Bandwidth capability increased to 48 Gbps.This enables a 3D graphics processor to display the image when it is rendered, allowing for a fluid and detailed gameplay, including the reduction or elimination of lag, stutter, and frame tearing. Gaming support: Variable refresh rate (VRR) is supported.eARC is compatible with Dolby Digital Plus, Dolby TrueHD, Dolby Atmos, DTS-HD High-Resolution Audio/DTS HD Master Audio, and DTS:X.
HDMI 2.1 also adds eARC, which is an audio return channel upgrade that provides enhanced audio connection capability for immersive surround sound formats between compatible TVs, home theater receivers, and soundbars.