Multiple audio tracks remuxing settings(?)

[Donzand]

Hello everyone.
I recently started to record my zoom calls using OBS, as I wanted to get separated audio tracks for each side of the meeting.

Now, I need to remux the .mkv file to a format that would allow every "stupid" program to playback both sides' audios.
So the main question - is there any possible way to configure remuxer settings so I can get one copy with "mixed" audio tracks, and one format with separated audio?

Thanks in advance,
Don

 

[koala]

Not with remuxing, but you can record the desired track layout with OBS in the first place like this (see the attachment image):

In Edit->Advanced audio properties, you can assign your audio sources like this: (look at the image of the attachment)

View attachment 79402

This way, you're creating track 1 as mixed track with all sources mixed, and tracks 2..5 with each source individually.
Media players will usually choose track 1 for playback if there is no preference, so you will be able to immediately hear your mix.
For postprocessing, import the other tracks in your postprocessing software and create the mix with this, then replace all audio tracks with your mixed track from postprocessing.

Keep in mind, no media player will mix audio on his own. Media players will only play one track at a time. To get a mix, you need to create one mixed track. The additional tracks are for postprocessing only, and in regular media, for providing additional languages.

 

[Donzand]

Thanks for the informative response!
I figured out I had to make a mixed track in addition to the separated tracks. Thought I would be able to save some space on my machine without generating large files. (x3 the size of a "normal" recording)

But I guess this is the way to go, so thank you.

 

[koala]

The size of audio tracks is negligible in comparison to the size of the video.