Divx Pro on HP Spectre to play UHD Bluray?

[hypershyft]

the Spectre's 4k...but iI've got no audio...I've tried plenty of encodings...7.1atmos, dd5.1 etc.,
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I just bought the pro edition dvix last night and had some install problems, could this be it, a bad install?
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also I was planning on a weird downmix to the spectre's stero, but i'm curious, if I bought atmos headphones, etc and get virtual hd etc surround drivers...
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so anyways, I want to play my uhd's on the go...what's the fix here??? TY

[hypershyft]

I am also interested if I get the sony 7.1 headphones with their sony atmos from the MS app store, if this will work.