Copy/add audio from one video to another

[cykor]

Hi!
I have two videos (same TV Show episode but from different years).
Both look the same but have different length.
When I watch them side by side I notice that the longer video have longer BLACK BREAK (between th show scenes).

To capture audio I use avidemux, to make MKV mkvtoolnix-gui (in mkvtoolnix-gui I setup audio delay)

What I need do to make audio works good? How to cut those differents? (best if there is some automatic way to do it - some program or something)

Greatings

P.s. Sorry for my english (not native)

[villaquien]

Have you tried audacity?

[cykor]

Have you tried audacity?

Only option I used here was Change Tempo / Change Speed.
But i need to change (cut some mute parts) audio file - but dont know how!

[jagabo]

But i need to change (cut some mute parts) audio file - but dont know how!

Audacity is pretty much the same as every other program: mark the section you want to cut, then select Edit -> Cut.

[cykor]

But i need to change (cut some mute parts) audio file - but dont know how!

Audacity is pretty much the same as every other program: mark the section you want to cut, then select Edit -> Cut.

This is to much time for one episode :/
And look almost imposible to do.

Some other programs to compare videos (frame by frame) or something?