Atmos question-pls help

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Hi,
When I 'm watch a blu-ray my amp tells me that I'm getting Dolby Atmos - linear pcm. I'm using a xbox one x has the blu-ray player and the amp is a sony STRDH790.cek 7.2. I have a 7.1 speakers. The xbox one is connected to the amp via hdmi. what am i doing wrong? are my settings right?

on the xbox one x under general/volume and audio output/speaker audio is set to bitstream out.

and bitstream format is set to dolby atmos for home threatre hdmi only.
 
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You've got a 7.1 speaker set-up. Just checking we're on the same page here; 7.1 means you have side surrounds (as for 5.1) and then a pair of additional speakers on the rear wall to complete the 7.1 array. Do you have up-firing- or ceiling mounted- speakers to make your 7.1 system in to 7.1.2 or 7.1.4?

You see, the amp is going off the speaker layout as to what sound it can process. For example, if you have a 5.1 speaker layout then the amp will do all the formats supported by that, but wouldn't do DPLIIx, or DD-EX or DTS-ES which are only accessible with a 7.1 speaker array.

The same thing is going to be true of Dolby Atmos.

Without the additional speakers in place, the amp may well report it's getting an Atmos-enabled signal, but it has nowhere to send the dedicated channel info because the speakers for it aren't there.
 
It'll just mix the Atmos ceiling channels to side/rears.

Imo rather than concentrate on more speakers, get better audio gear. Then when you're settled on decent 7.1 finish off the system.

I've stuck to high end 7.1
 
Hi,
Thanks for the reply. I added onkyo skh-410 speakers to my 5.1 setup to make it 7.1

It's not 7.1 then. It's 5.1.2 That's not me being picky. The difference is important for the way the amp sets up, and also for when you're asking people on the internet for help where we only know what you've got and how you've set up from the stuff you write.

Have you got the speaker connections and speaker configurations done correctly? This would be one of my first checks if I was on-site troubleshooting. Are the speakers connected to the correct sockets and are the speaker set-up menus configured correctly. The test tones should confirm this.
 
Ok changed the speaker settings to 5.1.2.

On the amp settings I changed front doubly speakers front Dolby speakers the onkyo 410 are at the front is that right?
 
With a 5.1.2 amp, whether the ATMOS speakers are physically located at the front or rear of the room makes less of a difference than making sure the reflected sound is hitting your seating position. If that works best when those Onkyos are at the front, then so be it.

The positioning for.the sub is usually at lor towards the front of the.room to better anchor with the front speakers. However, if your room only allows it at the back then that's where it will have to live.
 
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