HDMI 2.1
eARC solves these issues, as long as you have a compatible receiver as well. It vastly increases the amount of bandwidth that the ARC channel can use, up to an impressive 37 Mbps. This extra bandwidth makes it possible to send uncompressed 5.1 and 7.1 audio, like Dolby TrueHD and DTS-HD MA, which are often the carrier signals for Dolby Atmos and DTS:X.
https://www.rtings.com/tv/learn/hdmi-2-1
eARC solves these issues, as long as you have a compatible receiver as well. It vastly increases the amount of bandwidth that the ARC channel can use, up to an impressive 37 Mbps. This extra bandwidth makes it possible to send uncompressed 5.1 and 7.1 audio, like Dolby TrueHD and DTS-HD MA, which are often the carrier signals for Dolby Atmos and DTS:X.
https://www.rtings.com/tv/learn/hdmi-2-1