A couple of times I got messages that AC3 is too less quality for Blu-ray. The problem for me is, that there is no DTS/HD encoder in ffmpeg available.
Now I have created a special CinEx HD version that support LPCM in MKV files. If this is successful I will add LPCM support for Blu-ray, too.
LPCM is uncompressed audio and so you can encode this audio yourself with the encoder of your choice.
Yes. CinEx HD currently only work on the first 6 channels. It do not treat the HD channels. I also never started to analyze the HD channels if there is Cinavia inside this channels or not.
Create Full HD?
Yes you can try to mux the HD channels into the LPCM audio that CinEx HD finaly do. But please note:
Cinavia itself has a drone out effect inside the audio. So an Cinavia infected audio is always tempered in compare to the original mastered one without Cinavia. The Cinavia free audio that CinEx HD generate has a adjusted drone out effect. So it is possible that the HD channels from original audio are out of sync after removing Cinavia.Only solution: Try out!
You are welcome to tell me about your results.
Update 20.01.2017 @ 21:32
Some technical information:
1.) It is an option that work in SoundTouch 2 and also with database.
2.) It only make sense if the input is at least DTS or better DTS Master HD. It do not make sense if your input is AAC or Ac3.
3.) Input file have to be MKV. MP4 do not allow PCM and AVI is too old school.
4.) It currently do not work with BD.
5.) To activate, pleasse just tick the checkbox “Create LPCM MKV file”. If not activated it will use AC3 like before.