Originally Posted by Optimus_Fine
Somebody should put down a list of BDs with theatrical vs near-field mixes, even better if technical differences are detailed, like dB gain.
If your BD lists 6.1 you have the theatrical mix, anything else you have the afterlife mix. All studios mix for home, not just Sony/Columbia. Cinema DCP can do full 24 bits uncompressed @ 192Khz multi channel WAV file. Most movies are Linear PCM audio set at 24-bit 48kHz resolution or 20-bit 48kHz resolution, either in 5.1 or 7.1 channel layouts. 16-bit audio is sometimes used. ATMOS info is too much to type. BD as follows,
LPCM (lossless) 27.648 Mbit/s
Dolby Digital 640 kbit/s
Dolby Digital Plus 4.736 Mbit/s
Dolby TrueHD (lossless) 18.64 Mbit/s
DTS Digital Surround 1.524 Mbit/s
DTS-HD Master Audio (lossless) 24.5 Mbit/s
ATMOS substream is added to Dolby TrueHD or Dolby Digital Plus, so that is your speed respectively for ATMOS.
DTS:X is also added similar to ATMOS, so same applies there.
Second the theatrical mix is more for volume of a large building, so a theatrical mix would not sound better than a near field mix on a HT.
Third the biggest problem BD faces is lack of storage, no 3D UHD/4K, there is only so many things you can put on a 50GB DL BD, then you have to include the backwards compatibility with it, as not ever BD player is hooked to a 7.1 AVR, the vast majority, the speakers that came with the tv the player is connected to, most often by RCA cables.