Choice of an Atmos/DTS:X audiotrack on UHD, who makes that decision?

[Socko]

Mods, if this topic is in the wrong section, feel free to move it

Anyway, from time to time I like my Atmos tracks on UHD discs. I'm more an audiophile than a videophile
I've a good audio setup and I like how audio is wrapped around me, even though I don't have a full Atmos setup... yet.

What I don't like is when a new mix is presented the sound effects that I remembered when I first saw the movie are changed, removed or have a different volume and play more in the background than foreground.

There are some hit and misses when it comes to adding an Atmos track or DTS:X track to older movies.

I don't like the Atmos track on Mad Max 2
I don't like the Atmos track on Total Recall (1990). It sounds weak
I don't like the DTS:X track Jurassic Park

I love the Atmos track on Ghostbusters
I love the Atmos track on RoboCop
I love the DTS:X track on The Blues Brothers extended version.

And there's more examples.
The purpose of this topic is not to start a discussion about whether the original theatrical mix or new mix is better or more preferred.

I'm just curious on how the choices are made for remixing an audio track into a new era.

Paramount is a good example maybe.
They remaster the video, but hardly change the audiotracks.
Mission Impossible or Star Trek to name two big franchises which kept their original blu-ray tracks, although the new Star Trek movies did get an upgrade.

I think Fox UHD's also left the audio tracks alone.

Steven Spielberg movies from the 80s or 90s seem to get an Atmos track
So maybe that was the choice of the director?
And if so, why didn't Jurassic Park get Atmos tracks instead of DTS:X tracks. I know Universal loves them DTS tracks, but lately I see more and more Atmos discs from Universal.
And why didn't Close Encounters of the Third Kind get one?

Another Paramount example: Who could have made the choice to give The Untouchables an Atmos track?

Or who decided that Blues Brothers should get an audio upgrade?

[Jompa]

I don't know. We'd have to ask some insider. I am same as you. I liked the Dolby Atmos on War of the worlds, but i didn't like Carlito's Way DTS: X

[nick4Knight]

Atmos is the modus operandi for Sony and WB mixes on this format.

DTS:X is the default for Universal. Unless the director steps in or asks for atmos instead... like what happened with Schindlers List for Spielberg.

Paramount doesn't default to immersive, but when they do implement it it's atmos. And seems to be if it's a big enough title but not a franchise. Lionsgate does whatever. Some are DTS:X like Divergent but the sequels are atmos... Ex Machina is DTS:X.

The point being it seems as though the "decision" and who makes it is aligned with a studio edict, generally; but that is usually not iron clad or unable to be against the grain by director/producer input unless you're Sony and WB. There are still no absolutes there. Randomly Harry Potters are DTS:X, Bad Boys For Life from Sony as well as under 5 others, also (The Jumanji reboot sequel another notable).

I don't hate on DTS:X, and there are some amazing implementations. But at this point I wish all immersive mixes were atmos, and the good atmos kind with objects. The full fat home atmos standard is what we deserve. To future proof advanced setups. It would just make speaker/receiver setup easier to gear all content to one of these standards. And of the 3 atmos really would need to win that spot.

[Blu Cider]