The audio-visual world loves an acronym, so if you've heard about HDMI ARC or eARC and have been left scratching your head as to what these mean, then worry no more as we explain through these ...

Today, we're taking a look at two innovations in the HDMI cable connection standard: HDMI ARC and HDMI eARC. ARC stands for Audio Return Channel, and eARC stands for Enhanced Audio Return Channel.

In 2017, HDMI 2.1 introduced eARC, which added support for high-end surround sound such as Dolby Atmos and DTS:X. eARC also supports variable refresh rate (VRR), quick media switching (QMS ...

Additionally, HDMI 1.4 introduced an Audio Return Channel (ARC), which HDMI 1.3 does not support. HDMI 1.3 and 1.4 are marketed as "High Speed HDMI" or "High Speed HDMI with Ethernet." What Is The ...

There's a possible thorn in the side, though: HDMI eARC, which you can read about here, is the enhanced Audio Return Channel format that came as part of the HDMI 2.1 specification. If you're using ...