Dolby Atmos (DCP) vs Dolby Atmos (Blu-ray and UHD)

[spoRv]

I don't know how many Atmos mixes with more than active 11 speakers (excluding LFE) are around; what I can say is the cheapest amp that can manage AND amplify more than 11 speakers costs more than 3500€, not a very popular price IMHO.

Aside that, there are less than a dozen title with Italian Atmos track on BD/UHD-BD after seven years availability in home systems, while there are much more titles in German - dunno about tracks in French and Spanish...

[junh1024]

They should be the same, but home releases are normally near field

Right.
Home acoustics are different to cinema acoustics. So mixes should be remixed for NF. TO make it sound the same, it needs to be different.

A lot of the home ones aren't actually object based are they? Wasn't that on AVS or something?

What you read on AVS may be outdated information.

There's a lot of lazy mixes out there (*cough* Disney *cough*) that just use objects to create channels where ceiling speakers would go in a standard atmos setup instead of using moving objects.

NB: Home DA is not Cinema DA so any criticism about the home mixes might be N/A to the cinema mix.

Mulan 2020 uses objects uses objects

- most of the Atmos are locked too at 7.1.4 speakers, apart few notable examples (Gravity comes to mind, but my memory lacks, a lot!) where the objects move around a lot

Gravity uses objs uses objs for cinema (like most movies should), but since it's an early DA title, it;s likely to be 12o for home.

Taking in account that there are a bit more than one hundred DTS:X movies and few hundred Atmos ones, I guess the ones that use more than 7.1.4 speakers are few dozen at most!

This is my estimated breakdown of DA on BD, accurate to +-25% :

o = objects,

• 12o 50%
  
• 14o 25%
  
• 16o 25%
  

Streaming is more likely to be 16o due to how DDP JOC works.

You can check obj on the Mediainfo software.

Whether something is 12o or 714 doesn't matter in practice since objects will tend to 714 locations will tend to 714 locations anyway

There's definitely more then a few dozen. I don't have a Trinnov with Atmos viewer myself to test stuff, but judging from what I've seen online moving objects is starting to become more of a norm then with early mixes.

It's just that newer releases tend to be authored as  14o rather than 12o.

Aside that, there are less than a dozen title with Italian Atmos track on BD/UHD-BD after seven years availability in home systems, while there are much more titles in German - dunno about tracks in French and Spanish...

If you want foreign language DA, subscribe to streaming where foreign language DA is more common.

,

[weegee2392]

... Atmos to me is a bridge too far, because we are looking at the screen. Even in 3D, it's two-dimensional In the sense that we're in a box butt and one wall of that box is luminous, so we're oriented that way, and you have to be careful about pulling attention to the behind.- Walter Murch, The Filmumentaries Podcast https://filmumentaries.com/2025/04/sudde...ter-murch/

[dvdmike]

Plus nobody knows how to mix anymore