Oversimplification for your purposes being: UPmixing for > 2 Ch.
Stereo purists may disfavor as “not hifi.”
A/V gurus may see as a way to meld hifi and HT approaches.
Multiple examples if googled.
Immersive sound provides a natural, lifelike sound experience. StormAudio supports all existing and future leading Immersive sound formats.
www.stormaudio.com
That being the current top hit.
When well-implemented, Immersive Audio seems (to me) more all-encompassing than the best of holographic stereo. Imagine it as something that turns your stereo music into an enveloping image like 5.1, or Atmos etc. does natively with movie audio.
Not quite what I go for in music playback, since I’ve still never been to a “holographic” concert of any kind, so mileage varies as with everything else.
Very cool tech, no doubt about it.