* Make your PowerPoint as per usual, include the transitions that you want, like 'fade' and save it
* Now add narration. Here's a good YouTube tutorial
--- adding narration and exporting as a movie file (Lincoln CC)
* Get your lavalier mic, because the built in mic is terrible quality and noisey from the computer fan. Plug the lavalier into the far jack on the right side of your Dell E6510
* Now go to Windows Icon| Control Panel | Sound | recording | microphone array (which should be showing a graphic levels display if you've already plugged it into the jack)
* left-click microphone array and then properties and levels and put it at about 85%. (I tried 50% and while it sounded fine, it was a bit soft on my laptop playback, and certainly no problem with sound saturation at any moment), then click OK to get out. Explained here, note, if you still don't like the recording, instead of levels, hit configure mic although that seems to be for something different.
* In PP2010, open your PP and click on slide show
*
and in the new menu click record slide show and leave the two boxes checked so you advance slides with your clicks and record the mouse visible|
* Click on first slide and start talking, clicking the mouse or hitting 'enter' to advance to the next slide. Be SURE you're not talking while advancing the slide because the computer skips a beat in the recording. So, stop talking, advance slide, start talking again
* I can't see how it's possible to dub in new talk for individual slides or groups of slides. If you don't like your narration, you have to completely start over. BUT, you can click the || symbol on the little box on upper left and that pauses so you can be ready to go. But if you screw up on a slide, you have to start completely over, so be careful.
* The other option is to make a separate audio file and then edit that file and synch it with the PP (don't know how to do that yet).
* Despite what you may think, your mouse will NOT be visible.
*
To actually see the mouse cursor, hold down the CNTRL key and then hold down the left mouse button and you'll see a red 'laserpointer' which will be recorded. It'll disappear if you either leave the CNTRL key or release the mouse key.
You MUST first hold down CNTRL before holding down the mouse left button. Don't reverse or it won't record the laser point.
* click the "x" in the little recording box at upper left. to end the show
* If you want to start over and re-record, you can either just go to first slide and 'record show' again, or go to slide show and hit clear | clear narration on all slides
* When done, do file and you'll now see an option at top for media size and performance and you'll want to compress and choose a video size. I suggest leaving the size alone. I tried compressing to 1024x768 and that stretches it out horizontally on my 16:9 laptop screen. Perhaps if you leave it alone, it'll optimize to whatever screen plays it, on YouTube's customers?
At this point, your ppt as a pure slide show is now integrated with sound. If you want just the bare slides, you'll want to copy the show and rename it and then on one of the copies go to slide show and hit clear | clear narration on all slides However, you can still edit the slides as is, but strong edits will mean you'll probably want to clear narration and start over anyway.
* Now, at this point you have a PPTX file which plays like a video. But to make it suitable for uploading to YouTube, you have to make it into a YouTube acceptable format, like .wmv. So, while you still have your file open, click File | Save As and then give it a new name, and also under file type go about halfway down the long list and find Windows Media Video format and click it. It'll take a long time to make. Maybe half an hour for 40 minute YouTube with 90 slides.
Here's how to then upload to YouTube