So I recently invested in the LG OLED55C7P, which is gorgeous. I can now run my individual HDMI sources (Cable, Apple TV 4K, Xbox One 😵 to the TV, and audio out through optical to the playbar and beyond. All was good for video and sound - 5.1 for each source, and I didn't need a splitter (I used the Octava before, with my old TV).
In reading about Dolby Vision, etc., I saw that Apple recommended the Belkin Ultra High Speed HDMI cable. I saw conflicting opinions, but I wanted to use the best that I could, so I bought the cable and stuck it between the Apple TV and the TV. Boom - I started getting the 'Unsupported Audio' error in Sonos. I recycled power for everything, tweaked the TV audio output settings, tweaked the Apple TV audio output settings, and no luck. So, I swapped the good old HDMI cable back in, and life is fine.
So my question is - does anyone have perspective on why this cable, which I'd assume would be backward compatible, would have issues? The TV (2017 model) can pass through Dolby Digital/DTS multichannel via Optical, and it works fine with the non-Belkin cable between the Apple TV and it. I'm still getting Dolby Vision via the Apple TV with the old cable, so I don't seem to have lost anything, but it didn't make sense to me, so I figured I'd ask the experts!
Thanks in advance for any thoughts.
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I ordered the newer version of the Nvidia Shield which arrives today. I will re-test the HDMI theory and see if the same happens. My HDMI Audio Extractor has also just arrived so I am hoping that will be the complete solution regardless. I would rather stay away from the pass through of the TV as it has been unreliable from the get go. Everything running through optical is preferred.
However, I still have the issue of having to cycle through HDMI 2 (X1X) when switching to or from HDMI 1 (Cable) or 3 (Apple TV) or else I lose audio.
What’s the delay issue that was fixed?
I tried playing with the inputs paying attention to what Moosh said but it’s made no difference. It’s a very strange issue.
I have moved the inputs around as follows;
HDMI 1 - Nvidia Shield (Optical from TV into splitter)
HDMI 2 - Virgin (Optical into splitter)
HDMI 3 - PS4 Pro (Optical into splitter)
If I’m watching the Shield the 5.1 works, then if I switch to the Virgin and back the 5.1 doesn’t work yet stereo does. I think have to switch through HDMI 3 and back to HDMI 1 to get 5.1 to work again. So odd and no explanation. Even tried not using HDMI 2 all together but no luck.
I’m annoyed that my extractor didn’t work as would have preferred full optical set up but it may also be the HDMI issue of the TV stopping this from working.
I’m going to call LG today to report. More people who report it the better.
To improve OLED model Dolby no audio issue when switching HDMI input
It's not out in the UK yet so I can't test. Let me know if it fully fixes this issue! If it does i'm slightly annoyed I brought the optical slitter and multiple optical cables but a least its running direct.