DTS-HD 5.1 4K discs suddenly no sound

Definitely an LG issue and unfortunately not fixed in the recent update. I updated my LG C1 yesterday and the issue remains. 

So here’s the weird thing - I’ve noticed that when i press the Display button on my Sony X700, it shows that the disc IS playing 5.1 DTS-HD sound.

But then when i check the Sonos app, it is stating ‘Stereo PCM’.

I watched The Dark Knight the other night and the sound was quite frankly awesome. Definitely not stereo sound imo.

So i think this could be a problem with the Sonos app incorrectly reporting ‘Stereo PCM’ when it’s not.

Might be worth checking what your BR player is actually saying…

What was that showing on the Sonos app? I’ve played multiple 4K Blu rays and you can definitely tell the difference from previously when it was showing 5.1. When it’s shows stereo pcm on Sonos app the sound is a lot quieter and nothing of note coming through the surround speakers. When I try the same disc on my PS5 I can tell a noticeable difference and pcm 5.1 is showing. 

Resolved!

So after all this it turns out it was my Fire Cube causing the problem! Unplugged my Cube and the sound came back on all my DTS-HD 5.1 discs and is now showing Multichannel PCM 5.1 on the Sonos app.

Despite me putting the Cube to sleep, it turns out pressing play on my Sony Blu Ray player was switching the Cube back on too - which was causing the sound to stop. So weird and stupid!
Anyone having this same issue, try unplugging your Fire Cube (or stick) and see if this fixes it.

Hey King Bobby, 

I'm currently having a similar problem but I'm using a PS5 instead of a stand alone player. Movies I have watched before that are DTS no longer have sound once the movie starts playing. Playstation menu works fine, dvd menu has sound but as soon as the movie starts nothing. It has just started within the last couple weeks I would say. 

So for the past week I had been watching many blu ray discs that all had just a DTS-HD track on them. I intitially thought… ahh that won’t work as Sonos doesn’t support it. However I discovered it converts it to pcm 5.1. Which tbh all sounded great and all good.

Then suddenly today I’ve sat down to watch something and sound isn’t playing at all from discs. I even tried the ones I used yesterday as a comparison. They played yesterday. Now… silence.

i have lg c2, arc and era 300 rears. Sony x700 too.

i haven’t changed any settings… it’s just stopped playing the sound. So odd. 
I do have a fire stick. Tried unplugging it. Still no sound unless I do stereo 2.0. Which isn’t what I want. I want to go back to the pcm 5.1.

any tips would be great.

thanks 

Sorry no… it was the fire stick. Not a clue why it is interfering and only just now.

anyway. Have the pcm 5.1 back and sounds great again 

Glad to hear 👍🏽

I’ve been scouring the internet for some sort of help on this, hoping to find how to set up the Fire Cube so it doesn’t do this, but not having much luck.

The setup option menus on the Cube are very limited and not much help. 

For now i’ll just have to keep unplugging the Cube whenever i’m sitting down to watch a movie.

All very annoying! 😤

I can’t help much here sorry, I’m an Xbox man and i don’t have it set up in the same room as my Sonos/Oled/Blu Ray Player.

Yeah it’s very strange how it just suddenly happened. My fire stick has always been plugged in and I watched a blu ray on Thursday with no issues. Then last night suddenly it does not work. Unplugged fire stick and it does. So odd