Originally Posted by ABeezy13
Once again thank you for the wealth of information, I greatly appreciate that. Being new to the home theatre and sound setups, what would cause the LG to have this issue and not my Samsung. Its literally the exact same equipment except the tv itself. Does Samsung perhaps handle this better?
My experience with Samsung's ARC is limited, but I do know that when I first bought my LG, I was impressed that it was able to accept a variety of audio formats and then convert to a compressed Dolby stream itself. That's definitely not something my (much) older Samsung was never able to do. It is possible that your Samsung was either simply passing through audio from external sources, or only capable of converting to PCM which didn't introduce a delay.
It's also possible the Samsung was fully capable of doing everything the LG does, but just does it faster. Sorry, I really don't know much about the modern Samsung TV audio capabilities.
Originally Posted by ABeezy13
If an HDMI splitter or switch would correct the issue I could give it a try... do you have any recommendations to brands or anything? My cable issue wouldn't be to big of an issue as I have my tv mounted with my consoles and cable box in a wall mounted media cabinet so everything is hidden for the most part... unless these create extra HDMI cables and take up a lot more room. I am not too familiar with HDMI splitters or switches and in the case of getting one do I have to change anything on that anytime I change HDMI inputs on the tv?
For example I have my cable box in HDMI 1 the Sonos beam sound bar in HDMI2/ARC and then Xbox in 3 and PS4 in 4. If I am watching Cable on HDMI1 but switch to HDMI3 to play xbox would I then further have to switch something else on the splitter/switch in order to have the sound follow? Obviously right now I change from HDMI 1 to 3 and I do not have to do anything with the sound as its automatic (albeit the lip sync issue).
I will assume that you want to keep using the Sonos, otherwise I would recommend upgrading to a proper multi-HDMI input AVR to keep things simple (also noting that some cheaper AVRs will affect the video signal quality in HDR as-per previous recent discussions in this thread).
Your trick is to feed the Sonos and TV at the same time, so you need at least one HDMI splitter to do that. You also need to feed multiple devices into the Sonos which only has one HDMI input, so you need at least one HDMI switch to do that.
If you want to maintain full HDR capability on those devices, then you need to make sure the splitters and switches are all 4K 60Hz HDCP 2.2 compatible.
Assuming the switches and splitters don't affect the video quality, and you use good quality HDMI cables, then the following may work.
The XBox and PS4 should both be plugged into a HDMI switch. These typically come in 3 or 5 input varieties, and allow you to select which HDMI input to sent to a single HDMI output (they usually have a small IR remote control and push buttons on the splitter itself).
You then plug the output of the HDMI switch into a HDMI splitter. This automatically divides the HDMI signal into 2, so you can send one to the Sonos, and one to the TV's HDMI1 input.
These sorts of devices can be bought on EBay for a couple of dozen dollars, but I really couldn't say which ones would be the "best" in this case. I also can't guarantee that there won't be any incompatibility issues.
You would leave the Sonos plugged into the TV's HDMI2 input so you can still have ARC audio from the TV.
This setup is less convenient, because it means that you have to do more input switching when swapping between devices.
I do highly recommend using a universal remote control such as a Logitech Harmony to automate all of that, but that could be overkill for the few devices you have in this example.