Hdmi what is arc

Premium wireless earbuds are his passion but he's also keen on car tech and in-car audio systems and can often be found cruising the countryside testing the latest set-ups. In his spare time Andy is a keen golfer and gamer. What Hi-Fi? Andy Madden. See all comments 7. Unfortunately this is never as simple as its seems. This isn't a forum to name and shame, however a message to manufacturers "If your to sell technology, please ensure you and your support staff understand it!

I have lg cx a and samsung q70t soundbar connected with ultra speed hdmi eternet compatible cable. I see earc on soundbar after activated it on TV setting. My system is 2. The technology was introduced in HDMI 1. Essentially, it eliminates the need to use audio cables — everything is done through the HDMI cable. The connected audio device will also have to support eARC most soundbars do not. When using a receiver, you will also need to enable HDMI control.

The exact location of the setting will vary depending on your TV but it should not be hard to find. Consider looking for the latest updates for both of your devices and run an update; that should solve the problem. No, you do not need a separate HDMI cable. Any old cable will work. While the technology was introduced in the HDMI version 1. If you only listen to audio using your TV's speakers and don't have a receiver or soundbar, then the feature is superfluous. The point of ARC is to send audio created by or switched through your TV to an external audio device, namely a soundbar or receiver.

And because the sound on most TVs is terrible, we strongly recommend getting at least a soundbar to improve the TV experience. Check out our how to buy a soundbar guide and soundbar vs. Here's how it works. On the left is a traditional non-ARC setup, requiring an HDMI cable from an Xbox to be connected to the audio system, another to send the video to the TV, and an optical cable to send the TV apps audio back to the audio system.

A two-way street, if you will. An HDMI-equipped soundbar would look similar. The new format also has lip-sync compensation built-in. This feature was optional in ARC but is now required.

This lets you more easily line up the sound with the visuals, something that has always been an issue in the modern TV era. To take advantage of the new features, both pieces of gear must be eARC compatible. Older cables with Ethernet, either Standard or High Speed, will work.

The new Ultra High Speed cables will work as well, of course. But chances are your current cables have Ethernet and you didn't even know it, so they'll probably work, too. There are basically two main ways to connect a system using ARC. For our purposes, we'll assume you have: a TV, a receiver or soundbar, a Blu-ray player and a game console Xbox or PlayStation. This gives you the ability to control power, volume and other functions of the connected device with a single remote control device.

This powerful feature will allow you to control a myriad of devices that connect to the TV, such as game consoles and set-top boxes. This means that a TV can send signals to a Blu-ray player then down to another device and vice versa through the same connection. This is extremely efficient for people who want to use a single device such as the TV set as the centre of their home entertainment system. The TV set can be connected to a gaming console, Blu-ray player, set-top box or other input devices then connected to an audio output device such as a sound bar or other supplemental audio device via the ARC HDMI port.

This way, you only need one remote to control the whole setup. This connection also allows you to route the TV signal to a secondary sound device, which improves the quality of the sound from the TV. In most cases, connecting your gaming console or DVD player to the TV directly will reduce the quality of sound.