[Luis fernando Talero]

I just created this account to write what I found to be one possible cause of the problem. Actually I was looking possible solutions to the same problem (no audio at the final AVI file) but I couldn’t find anything, specially after reading about having to know which codec the original video has…bla bla)

The cause was a mistake of mine: by default, when adding a composition to the processing queue, there are some settings by default. When clicking the “Exit module” option, I found that by default the check box for including the audio was unchecked! So just click on it, choose some random codec and voila!

I know this is not the solution for most of the serious audio problems, but I think it is worth to write this experience in case some else could use it.

Regards!