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I have a Samsung HW-Q90R that supports ATMOS 7.1.2, with a Chromecast ultra connected directly to the soundbars HDMI port.
The Chromecast ultra should support atmos
I’ve uploaded a few audio files from
Anything with lossless in the title wont play and gives an error.
Is this expected?
Can the ultra play 7.1.2 ATMOS through plex?
That means they are TrueHD Atmos so not compatible with anything but the Shield and Xbox series.
I just bought a new TV (LG C1).
The Plex app on this TV plays these files, so the above statement is incorrect.
So you are saying your TV app can direct play TrueHD to your AVR? That would be news.
I believe so.
I downloaded the amaze lossless file from
https://thedigitaltheater.com/dolby-trailers/
This one…
The same file wouldn’t play on my last tv
In plex it recognises it as 7.1 truehd
Yes, Plex will recognize that the file is TrueHD 7.1, but the device you are playing from (i.e. the Chromecast Ultra) must support that for it to work. The Chromecast Ultra does not support that. If your TrueHD 7.1 has the EAC5.1 base track, the app will play the base track but you will lost the other 2 channels. If it does not have the base track, your Plex Server will transcode the 7.1 to something the device supports, likely 5.1 aac.
So you are saying your TV app can direct play TrueHD to your AVR?
That won’t work. You can’t pass TrueHD out from a TV.
It recognizes it, but what does the AVR say the file is being passed to it as?
Unfortunately my AVR doesnt tell me much. Its a Samsung Q90R 7.1.2. They only time the display shows anything is when it receives a file with Atmos metadata.
And to make things even more confusing…
The AVR doesnt recognise this file as Atmos when played through Plex. But it does play the 5.1.2 channels correctly. (When playing the noise from above, only the upward firing front and rear speakers fire).
Thanks, but I think you missed my second post.
I originally tried with a Chromecast ultra on my old tv, but got an error in plex with lossless files.
The file would not play at all.
I then upgraded my TV to a LG C1 and used the LG plex app (not chromecast) and the same file plays.
I would need more info, but most likely the TV didn’t report a supported codec back to the Chromecast Ultra or reported the wrong codec so when it tried playing the file, it just fails.
I then upgraded my TV to a LG C1 and used the LG plex app (not chromecast) and the same file plays.
But what is being sent to the receiver? A TV should not be able to send TrueHD 7.1 atmos to a receiver via the arc connection. If the reciever doesn’t tell you but you do hear 7.1.2, it’s likely the receiver is doing some sort of internal conversion from what it is receiving. Some devices do have these special Dolby chips that can do that. Have you tried playing a regular 5.1 or 7.1 audio track and seeing that the receiver does then?
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