CEC allows you to operate multiple devices via one remote. ARC and eARC technology transfer audio between connected devices.

A standard, pre-ARC HDMI port, in contrast, only supports video and audio transmitted from a source device directly to a TV or another type of display. The biggest practical application of ARC is ...

HDMI cables are the most popular solution for connecting living room devices to living room TVs. Here's everything you need ...

However, most TVs only feature one solitary HDMI port marked with 'ARC', so you'll need to ensure you use that port to connect devices with an HDMI cable, otherwise it won't work properly.

In 2017, HDMI 2.1 introduced eARC, which added support for high-end surround sound such as Dolby Atmos and DTS:X. eARC also supports variable refresh rate (VRR), quick media switching (QMS ...

If your TV doesn't have HDMI ARC or a port marked HDMI output, then you'll need to use the digital audio output. This will either be an optical or co-axial port, so make sure your soundbar has the ...

Another fun pin is pin 14, known as HEAC. You might’ve heard of Ethernet over HDMI and HDMI ARC (Audio Return Channel), and this pin is used for both of these, together with the HPD pin that ...

This was a bugbear with the earlier Sonos Arc and it was widely expected the Ultra would 'fix' this – but, alas, it wasn't to be. If you know the single HDMI port is perfectly fine for your ...