Originally Posted by bd2003
I expect there will be a higher channel version of LPCM before that. Otherwise why even implement 32 channels in HDMI 2?
It's possibly HDMI included this in case a format was decoded in some new player coming down the pike with internal audio decoding to multi-channel PCM. That's how a lot of Blu-ray players were back at the beginning of the format since not all surround processors could accept DTS MA and Dolby TrueHD. That will be true again with any future audio format. It's also possible that it has to be able read any number of potential audio flags and be able to know how to route the signals. I doubt we'd see anything close to 32 channels of anything
in homes, though it would be nice if the object rendering processors had the potential.
The industry seems gung-ho about object based audio formats due to the immersive nature of the experience and scalability that you cannot get with just channels, and I would expect it to trickle down to consumers. This happened with DTS and Dolby Digital in the laserdisc era. Of course, it was Blu-ray that had 7.1 discrete channels before
it was implemented in theaters (sometimes it works in reverse). Atmos, for example, can address up to 64 speakers... all from one soundtrack.
Consumer hardware can grow and expand as needed, and yet the same object audio track can be used. No need to buy another UHD copy of Star Trek or Oblivion, etc. because there wouldn't have to be another mix created (the metadata is already there for the renderer to read and route to your customized speaker layout). Just update your hardware to allow for more speakers.
Even if there was a channel only format introduced with 9.1 or 11.1 or some other channel number before object audio, it would be lossless compressed to save space.Edited by Dan Hitchman - 9/16/13 at 5:46pm