They also simplify and streamline your cabling, making for a tidier external audio system. HDMI ARC and eARC can handle high-end surround sound setups and support a range of modern digital audio technologies that you won't find on all alternative cable solutions. That second cable is using HDMI ARC to handle audio commands to the A/V system while transmitting video through the A/V system from the source device to the TV. Instead of having an HDMI cable to your TV and another cable to manage audio going to your A/V system, you can instead run an HDMI cable from your source device to your A/V system, and another one from the A/V system to your TV. If you have a dedicated amplifier, DAC, or surround sound setup that you want to use as the preferred audio output when watching TV or movies, then HDMI cables can simplify the process. It also introduced standardized timings to use with resolutions like 4K and 1080p at specific refresh rates. HDMI ARC was introduced in the HDMI 1.4 standard, alongside the ability for HDMI cables to handle Ethernet connectivity, support for niche features like 3D TV, and extra color spaces. Where HDMI cables are traditionally used to connect a video and audio source, like a desktop computer, Blu-ray player, or games console, to a TV or monitor with just one cable, it can also be used as part of a more expansive A/V system, too. HDMI ARC, or audio return channel technology, is the name given to the specific use of an HDMI cable for transmitting and receiving commands from an external A/V system. Optical cables so you can decide for yourself. The HDMI ARC vs Optical debate was won long ago.ĭon't believe us? Here's everything you need to know about HDMI ARC vs. When it comes to choosing a cable for your audio, HDMI cables with ARC (or even eARC) support offer a better all-around experience. While optical cables might be the more traditional audio cable solution that many are familiar with, HDMI cables support audio return channel (ARC) and in the latest versions, enhanced audio return channel (eARC) technology, which alone is a major reason to consider HDMI over optical cables. HDMI cables are also primarily used for video and audio, so why might you choose an HDMI cable over an optical cable? Whether you're hooking up your games console to your TV, a Blu-ray player to an external A/V system, or an HTPC to your expansive cinema room setup, chances are you've used an HDMI ARC cable and an Optical, or Toslink cable, or even a combination of both.Įach of these cables can deliver high-quality digital audio to your sound system or TV, but if you have the option of either, which should you pick? This isn't always easy to figure out, as optical cables are some of the most established ways of transmitting quality audio, so are supported by a wide range of devices and displays – especially older devices where HDMI wasn't a ready alternative. HDMI cables and optical cables are two of the most popular ways to connect displays like TVs and monitors to a range of audio and video equipment. Facebook Twitter Google + LinkedIn Pinterest Email Share.
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