I have a MacBook Pro with OS X 10.9.4 and Keynote 6.2.2. I have a presentation done in Keynote with slide and music. Now I want add a voice over. Can I do that and if so how?
You could also use QuickTime Player to record the audio separately, in case you want to edit it, add pauses, etc. QTP is actually a pretty versatile tool; it can do screencasting and general recording but most people don't even know it's there.