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Solving audio sync with some mkv files.
Since the introduction of the mkv file i have had audio sync problems (with some not all) when converting the mkv to dvd.When i play the original mkv file with VLC player there is no audio problem and it plays perfect but as soon as i convert it to DVD using ConvertX to DVD the audio is out of sync.My only conclusion is that who ever encoded it originally did something wrong.Now i have come up with a solution that works some of the time thanks to JustME for guiding me to here
When you use the program MKVtoolnix it allows you to delay the audio by miliseconds and remuxing it.It is a very cool program for other editing as well , like adding or removing subtitles and other stuff.Now as far as fixing the mkv's with the audio problems you have to experiment with the program by how much the audio is out of whack.First download MKVtoolnix from here -
Here's how to:
1 - Open up MKVmerge. Under Input select the mkv file by clicking "add".
2 - You will now see 2 or 3 tracks , Video , Audio and sometimes Subtitles.
3 - Now highlight the audio track (usually AAC or AC3)
4 - Next look for "Format Specific Options"
5 - Now where it says delay (in ms) input 20 or 30 ms.
6 - Now where it says "Output name" You have to rename the file (i usually just add mux 1 to the file name)
7 - Finally click "start muxing"
8 - Now convert the mkv to dvd and check the audio sync.
You may have to try it a few times to get the right sync. Usually try 20 or 30 ms at first which has works well for most but not always. Maybe try 40 or 50 ms or whatever it may need. It only takes approx a minute to re-mux it. Hope this helps some if running into this type of issue.
Since the introduction of the mkv file i have had audio sync problems (with some not all) when converting the mkv to dvd.When i play the original mkv file with VLC player there is no audio problem and it plays perfect but as soon as i convert it to DVD using ConvertX to DVD the audio is out of sync.My only conclusion is that who ever encoded it originally did something wrong.Now i have come up with a solution that works some of the time thanks to JustME for guiding me to here
Code:
http://www.videohelp.com/tools/MKVtoolnix
Code:
http://www.videohelp.com/download/mkvtoolnix-unicode-2.4.2-setup.exe
Here's how to:
1 - Open up MKVmerge. Under Input select the mkv file by clicking "add".
2 - You will now see 2 or 3 tracks , Video , Audio and sometimes Subtitles.
3 - Now highlight the audio track (usually AAC or AC3)
4 - Next look for "Format Specific Options"
5 - Now where it says delay (in ms) input 20 or 30 ms.
6 - Now where it says "Output name" You have to rename the file (i usually just add mux 1 to the file name)
7 - Finally click "start muxing"
8 - Now convert the mkv to dvd and check the audio sync.
You may have to try it a few times to get the right sync. Usually try 20 or 30 ms at first which has works well for most but not always. Maybe try 40 or 50 ms or whatever it may need. It only takes approx a minute to re-mux it. Hope this helps some if running into this type of issue.
