![]() In the original HDMI standard, your TV could receive audio through HDMI, like when your Blu-ray player sends audio and video on the same cable-but it could not send audio out. Since HDMI 1.4, HDMI has supported a specification known as HDMI ARC (Audio Return Channel) that offers two-way communication, similar to the HDMI control scheme specification HDMI-CEC. ![]() RELATED: Why Can I Control My Blu-ray Player with My TV Remote, But Not My Cable Box? RELATED: How to Improve Your HDTV's Sound with a Compact, Inexpensive Sound Barīut without a receiver handling the audio in a central location, how do you get the sound from the HDTV to the auxiliary speakers (like that nice new soundbar you picked up)? You could rely on older standards like the optical TOSlink cable-the little dog-door-like port is still ubiquitous on HDTVs-but if both your HDTV and your speaker system are newer, you don’t have to settle for using a 30 year old optical cable standard and can both par back the number of cables you use as well as the newer audio formats HDMI can handle but TOSLink cannot. While there is still a time and place for a dedicated receiver, many newer HDTVs-with smart features built right in and a plethora of ports on the back-can serve as the hub, with the receiver taking a back seat (if there is a receiver at all). DVD/Blu-ray players, cable boxes, game consoles, and other devices all went into the box, and then video and audio signals were split between the TV and the speakers, respectively. Historically, an AV receivers was the heart of the home media experience, and everything connected through it. ![]() HDMI ARC: The HDMI Specification You’ve Never Heard Of
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