Is it possible to convert the cinema versions of Dolby Digital (specifically the one that looks like a QR code on 35mm reels) or DTS to their home theatre audio equivalents? Is it even worth it to do so if it is possible? I’m guessing it probably will make a difference for films that have had their audio mixes changed throughout their home releases or if the DVD or Blu-Ray audio mix is somehow inferior to the one shown in cinemas but I have no idea how many releases this would apply to.
There’s some notes here on how to extract the audio from the CinemaDTS CD-ROM discs and sync them up to your target video file.
One thing though, the audio files on these discs are compressed and stored in APT-X100 files–one file per reel–with a bit depth/sampling rate/bit rate of 16bit/44.1khz/882kbps with a 4:1 compression rate. So, it’s not exactly a lossless representation of a film’s original sound-mix.