Digital IMAX vs Regular 4K

[BozQ]

Originally Posted by Uncanny

Do both have DTS-HD Master Audio or Dolby True HD? At the end of every movie those two plus Sony Digital Sound come up. Are we getting a Uncompressed soundtrack when we watch a movie?

No. Cinema does *not* use Dolby TrueHD or DTS-HD. Those are solely for home entertainment use only.

Digital movies comes with LPCM soundtrack. It's up to each individual cinema whether they're fitted with Dolby or Datasat receiver to process the LPCM soundtrack. Either way, it should sound the same.

SDDS is a different story. I don't think they're relevant in digital releases. Only 35mm projection. Some newer productions don't even provide SDDS soundtracks anymore.

Before digital projection became common, the difference between Dolby, DTS and SDDS is debatable. But now, we're in a different era.