Adding on "surround sound" to MKV files

[theproman23]

I have a lot of MKV files and I've been trying to figure out how to add on DTS or TrueHD or any sort of audio to any of them that don't have true surround sound.


I haven't the faintest idea of what the various audio formats mean, i.e. I couldn't tell you the difference between TrueHD, DTS, AC3 etc.

Is there a website that I can download these Audio files from and may be parse them on to the MKV files using something like MKV tool knix?

How about fixing existing MKV files with audio issues? i.e. I have a MKV file for Total Recall and the TrueHD audio on the files cuts out every 10 mins for about 3 secs and it's pretty annoying. I would love to be able to fix something like that.

[hogger129]

I have a lot of MKV files and I've been trying to figure out how to add on DTS or TrueHD or any sort of audio to any of them that don't have true surround sound.

Get MakeMKV and mkvmergegui - both of these are free programs (MakeMKV just needs you to get the Beta code which they have a thread on their website to give out).

Open the movie with MakeMKV and select the main movie and the HD audio, let it run, then all you have to do is open both files in mkvmergegui, select the video streams and the audio streams you want, and run the program, then it just puts it all in one .mkv container. Great programs.

I haven't the faintest idea of what the various audio formats mean, i.e. I couldn't tell you the difference between TrueHD, DTS, AC3 etc.

LPCM = Linear Pulse Code Modulation, and it's basically uncompressed audio stored in a .wav container on the BD. Everything can play it. Think of it like the native language your equipment speaks. This is the format everything is converted to before it gets sent out on the wires as analog audio.

Dolby TrueHD/DTS-HD Master Audio/DTS-HRA are losslessly compressed audio. It's the same as PCM, just compressed a little without throwing any information away. Think of it like FLAC.

AC3 = Dolby Digital. It is what is considered "lossy" because it compresses the audio by throwing some information away, sort of similar to what MP3 does with music. Most people use this with backups if they are limited with space because it's a fraction of the size of something like PCM, and nearly everything can play it.

DTS 5.1 is another you might see a lot. In Blu Ray, Dolby Digital 5.1 and DTS 5.1 are included for what is called "core audio." The reason for this is because if you put a Blu Ray disc into a Blu Ray player that doesn't support the lossless codecs like TrueHD or DTS-HD, it has nothing to fall back on and you hear no audio right? Well the studios put it in there for that very reason.

Is there a website that I can download these Audio files from and may be parse them on to the MKV files using something like MKV tool knix?

How about fixing existing MKV files with audio issues? i.e. I have a MKV file for Total Recall and the TrueHD audio on the files cuts out every 10 mins for about 3 secs and it's pretty annoying. I would love to be able to fix something like that.

Are you sure it's not your equipment? Do you have other files with TrueHD audio where you could test in order to make sure it's the file and not something else? Otherwise, like I said, all you'll need are those two programs and the movies and it's a pretty simple process.