Solution 1 – Switch to a third party media player
As we mentioned, Movies and TV app doesn’t have support for DTS audio, so the only solution is to wait for official update from Microsoft, but this might take a while, depending how high this issue is on their list of priorities.
Instead you can always switch to third-party media player such as vlc or any other. There are no issues with third-party players, so until Microsoft releases an update for Movies and TV app only solution is to use third-party multimedia player.
If you are looking for specialized software products which deal with converting of .mkv files, we would recommend you to try out MakeMKV ().
Even if you have other problems with .mkv files, not just sound issues, you can try with the third party player.
Solution 2 – Convert .mkv files to MP4
If the issue persists even when using a third-party media player, this could indicated that there’s something wrong with .mkv file itself. Converting it into an MP4 file could help you fix this problem.
You can use VLC to complete this task. This versatile media player can also convert Mastroska files into MP4 files.
Simply launch VLC and click on the Media menu. Select Convert/ Save and upload the problematic file to VLC. Now, you need to select the video format to use, specify the destination folder and launch the process.
RELATED: How to fix Audio Issues in Windows 10
Solution 3 – Run Windows 10’s built-in troubleshooter
Windows 10 also features a dedicated audio troubleshooter that could help you get back sound on .mkv files. Go to Settings > Update & Security and click on Troubleshooter. Go to ‘Get up and running’, select ‘Playing audio’ and run the troubleshooter.
Check if the problem persists.
Please help I'm really getting desperate here..
As the title suggests, I suddenly lost all audio when playing movies in the .mkv format. Everything used to work perfectly some days ago. I can't remember changing any setting. I'm using a SPDIF output and I notice the green audio light on my speaker starts flashing while a .mkv is playing. Things i have ruled out so far:
-it's not the audio player, doesn't work on VLC nor Windows Player (which it did before)
-it's not associated with the OS, im running Win10 on my laptop also and it still works there
-also its not the movie since i tried other .mkv movies that i remember watching not long ago on this setup and they worked perfectly
I also tried changing to other audio lines and made sure i have the right output device. but then again it cant be a simple solution since it doesn't happen while playing other formats like .mp4
I have even tried reinstalling windows but it didn't help! Another strange thing is that my microphone also stopps working when I play a mkv movie. Other formats are not affected.
I was thinking maybe a special part of my onboard sound might be broken (?) if thats even possible.
Very strange thing, does anyone have an idea why it could be?
Thanks in advance.