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.

Admittedly, standard HDMI ARC is still limited in its output, with a maximum of 5.1 compressed audio channels able to be streamed from TV to soundbar, or a heavily compressed version of Dolby ...

For ARC and eARC connections, you can connect the soundbar to a TV with a single HDMI cable; otherwise, you’ll just need to connect an optical audio cable in addition to an HDMI cable.

Again, note the ARC label on the HDMI connection that would connect to the TV. In the first option below, you'd connect all your sources to the soundbar, and just run the one cable to the TV.

We may earn a commission for purchases using our links. Learn more. The most underrated feature of HDMI is Audio Return Channel, often called ARC. You can extend your HDMI capabilities by using ARC.

Tip: In order to use either HDMI ARC/eARC, both your TV and external audio system (soundbar, AV receiver) need to be HDMI ARC or eARC equipped. HDMI ARC Capabilities: HDMI ARC can transfer Dolby ...

You really only need ARC if you're using the TV's internal tuner or built-in apps. If both the receiver and TV are modern enough to have HDMI 1.4 or newer on both ends, no need to run SPDIF over ...

ARC was introduced as part of the HDMI 1.4b Specification, and allows for the two-way travel of audio data over an HDMI cable to and from a TV.

HDMI ARC and optical are the two go-to connections for sending digital sound from one device to another, but is there a difference between them? Let's find out.

Audio Return Channel or ARC, adds the ability for a TV to send audio backward along an HDMI cable to its source device. This lets you reduce the number cables within your A/V setup, streamlining ...

ARC was introduced as part of the HDMI 1.4b Specification, and allows for the two-way travel of audio data over an HDMI cable to and from a TV.