Convert TrueHD from MKV, maintain original plus AC3

[rwttm001]

Hi all,

I have a number of MKVs that I created with MakeMKV to work with my old AV receiver setup, that is I only kept the HD video and HD audio options. I'm looking to get them working direct to my TV using Plex, however the (new) TV doesn't support any of the HD audio formats.

Is there anything out there that will take the MKVs and recreate them as is, also including a downmixed audio track? I really can't be bothered with reripping!

[Baldrick]

You can try popcorn mkv audioconverter.

[rwttm001]

Thanks, I have and it worked, apart from keeping the original TrueHD track. In the FLAC tab there is an option to 'Preserve original FLAC tracks' that is missing in the TrueHD tab which means I can't create an output file with both the original TrueHD and downmixed track.

I could convert to FLAC and then to DTS in a 2 step process but that seems like a lot of work, plus I'd lose the TrueHD track completely which I don't want to do.

Unless I'm doing something wrong of course.

[ndjamena]

You can remux an MKV with MakeMKV and keep the TrueHD while converting it into a secondary AC3 track as well using a custom profile.

[rwttm001]

Thanks, that sounds good. Any chance of a pointer as to how it would work? Do I just edit the 'Default Selection Rule' string in preferences? Is there any documentation/examples anywhere?

[ndjamena]

Documentation would be here:

http://www.makemkv.com/forum2/viewtopic.php?f=10&t=4385

A sample would be here:

http://www.makemkv.com/forum2/viewtopic.php?f=1&t=8008#p34177

(That really is the best sample of a MakeMKV profile on the forum, or anywhere as far as I can tell.)

You want to add an AC3 "Output" to each of the TrueHD listings (stereo/multi), add a 5.1 "audiomix" to "multi" and then add +sel:all to their Default Selection Strings (or +sel:true if that makes more sense.)