Besides the enhanced sound quality, using an HDMI ARC connection lets you take advantage of HDMI CEC — or Consumer Electronics Control — which lets you change the volume of your soundbar or AV ...

At a minimum, eARC requires that both an audio device and its connected HDMI port support HDMI 2.1. If you're unsure, check ...

There’s some interesting stuff lurking around in the HDMI spec, and at DEF CON, [Joshua Smith] laid the Consumer Electronics Control (CEC) part of HDMI out on the line, and exposed a few ...

The core also provides support for ARC/eARC and CEC 2.0. Both Video and Audio is supported with added low-level access to Auxiliary data packets. This feature allows low level development and testing ...