.

Also, what does HDMI stand for and what does it do?

High-Definition Multimedia Interface

One may also ask, does HDMI carry audio? HDMI cables can transfer video andaudio in high definition quality from one device to another.There are a variety of reasons you may not be hearing sourceaudio on another device when using an HDMI cable; thesettings may not be correct on one of the devices, the hardware maybe faulty or the cable itself may be bad.

Similarly, is HDMI audio better than optical?

Both HDMI and optical pass digitalaudio from one device to another. Both are betterthan analog (the red and white cables). Both cables can be hadpretty cheap. The biggest difference is that HDMI can passhigher-resolution audio, including the formats found onBlu-ray: Dolby TrueHD and DTS HD Master Audio.

Can I use HDMI ARC as regular HDMI?

HDMI with ARC is a regular HDMIwith added Audio Return Channel functionality. This means, youcan connect video source to the port and you canconnect audio receiver also. I've tried all different hdmiinputs from ps4 to chromcast to pc. They all don't work onhdmi 2 arc for some reason.