I need to combine a movie without sounds and a MP3 file. How can I do it in OS X? I have Adobe After Effects but it is not at all intuitive to use -- or better I need to find some button to render the sounds with the movie but now no time -- is there some easy fast-to-use software for OS X to combine sounds and videos?
iMovie is the obvious choice. It's very easy to use and fairly reasonable in price. You might have it already if you have a newish mac or else it's $15 I think.
Adobe After Effects
I remembered now how to do it in After Effects:
Composition > Add to Render Queue and then click
lossless and put the cross to the audio thing. Now specify the target and then hit
A good video here how to do it.