[Harry7]

It may seem a newbie question, but I could not figure out how to add an external audio stream to a video file being played on my Android, even though the description in Play market states there must be a way.
There is plenty of info on this for desktop application, but in this forum I have seem only questions, no answers..
Adding an .mp3 file with the same name as the .avi - does not work. Preferences - Audio shows the sound file that the avi came with and nothing else. Ok, there is a way to select a language - eng is what I have selected, but now what? That seems to be an option for files with several audio streams embedded.. Is there anything I am missing?