You can add Audio Track to a video in VLC Media Player
- Open VLC Media Player
- Then go to Media in VLC
- Open Multiple Files
- Click on Add
- Now add Video that you want to play
- Then click on show more options
- Click on Play another media synchronously
- Click on Browse
- Now Add that Audio file which you want to play
- Click on Play
- Video will start, Now go to Audio>Audio Tracks>Track that you added