Syncronizing MKVs

[PonyoBellanote]

Hello again! Sorry for bothering you for another question, but this'd help me a lot ^^

I got some MKVs to sync audios with. The perfect example is Pokémon: The First Movie. If you didn't know this movie has some deleted scenes. I want to get my 5.1 english audio to the japanese 1080p MKV I have. With what program can I edit the .ac3 and sync it with the MKV. Like, on the very first 20 minutes, they don't exist on english, how can I do to get on the 5.1 mix the japanese audio that is suposed to be on that scene and later set the audio to begin, cutting some parts of the english audio and stuff? The kind of things fansubs do and stuff.


I am not very good at explaining so I hope you can understand what I mean. MKV can synchronize but only if the files are the same exactly.

[Choey]

Cut off the parts that don't have the dub with avidemux

[PonyoBellanote]

I don't want to cut the video. I want to cut the audio and sync it. Use a editor that could get the japanese audio on the english audio that ain't.