visualWebber wrote while I'm showing those animated graphics? |
What does that mean? "Showing" animated graphics makes me think you're thinking of some sort of power point presentation. After Effects makes videos that people simply watch. So are talking about standing in front of a group of potential clients and "showing" them a video?
Anyway. To answer your question, sort of: To add voice over you need recording software (like Audition or whatever) & a microphone.
You watch the video and while recording your voice using the microphone and recording software. When your done you save the recording into one of many standard audio formats (AAC, FLAC, MP3, etc... ) and then import that file into the After Effects project and render the whole thing out in the video format of your choice, depending on what device the video will be viewed on. The other option is to record the narration first (import it to AE ) and then create video to match it.
However, if you just using "slides" which I imagine you to mean just jpeg images or something of that nature that transition one to the next then After Effects is not the right choice at all. For a simple slide show with audio your better off going with something a lot less complicated than AFter Effects. I think both WIndows and Apple products ship with some free image editing apps that sound more suited for what you're describing.
So, before "diving in" as you say, I think you need more clarity on what it is exactly your wanting to do. "Marketing" is wide field with many different avenues of specialization. If you just want to make some animated slides with a voice over then AE is overkill x 1,000