HDMI ARC and eARC are useful technologies for streamlining your TV and A/V system's cabling, while giving you the best audio possible. Here's how.

A war of audio capabilities. Fundamentally, both HDMI ARC/eARC and optical let you send digital audio from one piece of hardware to another. The idea behind this is to be able to send whatever ...

Both HDMI and optical pass digital audio from one device to another. Both are better than analog (the red and white cables). Both can pass multi-channel audio, like Dolby Digital.

It's evolved significantly since then, too, going from a relatively simple one-way digital video and audio connection to a bi-directional conduit for almost every video and audio format imaginable.

There needed to be a better way to get audio from the TV itself to the receiver, and thankfully, one came about with the evolution of the HDMI spec Audio Return Channel in 2009 as part of HDMI 1.4.

HDMI ARC and eARC provide a two-way flow of sound between a TV and a soundbar or other gear. Here's what you need to know.

The HDMI audio/video interface standard is everywhere: TVs, set-top boxes, media streamers, Blu-ray players, A/V receivers, gaming consoles, camcorders, digital cameras, and even a few smartphones.

All three connections are digital, of course. Coaxial and optical can only transmit audio data, while HDMI brings the added bonus of supporting both audio and video. ... S/PDIF (Sony/Philips Digital ...

Now, select Set up digital audio. ... If the HDMI audio is not set as the default device, you will not see it as a sound option in Windows 11/10 Settings. Hence, ...

Key Digital has updated its in-line Ultra HD/4K 18G HDMI Fixer with the release of the KD-FIX418A-2, an update to its in-line Ultra HD/4K 18G HDMI Fixer.This new release is important for integrators ...

A standard HDMI ARC connection supports Atmos signals that use the compressed Dolby Digital Plus audio format, but getting full-resolution Dolby Atmos sound requires using an eARC connection.