insert additional audio track + syncrhonization [mkv]

[leandro]

Hey everyone!

I got a MKV file and I want to insert an extra audio track to it.

Basically, I extracted the audio track from an DIVX/MP3 file to plain mp3 audio. Now I want to insert this mp3 audio into the MKV file using MKVTOOLNIX.

The mp3 audio I want to insert has about the same length of the mkv video stream but needs to be properly synchronized (+/- 2s).

My question is, how can i insert and sync this new audio track properly?

thanks.

[poisondeathray]

mux the audio track with mkvtoolnix

in a media player use the +/- keys to add/subtract ms delay until it's synced up (make sure you enable the correct audio track or remove the other audio track first) . write that value down

open the file in mkvtoolnix, highlight the audio track, format specific options tab, enter the delay value you wrote down, press start muxing

Note: if the lengths are different between audio & video track, you won't get it in sync with this method - it's a constant delay scenario (e.g. if they are different theatrical cuts, or PAL vs. NTSC versions - it won't work)

[leandro]

open the file in mkvtoolnix, highlight the audio track, format specific options tab, enter the delay value you wrote down, press start muxing

Note: if the lengths are different between audio & video track, you won't get it in sync with this method - it's a constant delay scenario (e.g. if they are different theatrical cuts, or PAL vs. NTSC versions - it won't work)

Hmmm, I didn't know mkvtoolnix had this delay value to be set.
yes, it is a constant scenario delay (same length, alread tested).
I'll try it, then I'll post the results back.
Thanks.