Let us start by deciphering the acronyms and explaining what this enigmatic HDMI and equally enigmatic CEC and ARC.
HDMI – what is it?
HDMI stands for High Definition Multimedia Interface. Simply put, it is a type of high-quality connection for transmitting audio and video signals between different devices, usually between a TV and a peripheral device.
HDMI CEC – what is it?
CEC is short for Consumer Electronics Control, a functionality that allows you to control the basic functions of HDMI-connected devices. With HDMI CEC, using the TV remote, you can, for example, turn on and off the peripheral device connected to it, pause sound or adjust volume.
HDMI ARC – what is ARC?
ARC stands for Audio Return Channel. What is it for? The easiest explanation is that you will be able to transmit signal in two directions – from the peripheral device to the TV and the other way around. What does this mean? One cable less in a whole tangled bunch of them, as you do not need any other cables for audio signal transmission if you want to improve the sound of your TV.