How to Improve Sound Quality in PowerPoint 2010?

I'm trying to record sound in PowerPoint 2010 but it comes out very poor. I read a recommendation to set up the audio parameters in PowerPoint 2007, save the file, and then open the file and record sound in PowerPoint 2010. Surprisingly, they say, the good audio parameters set in PP2007 persist in PP2010. Unfortunately, I don't have PP2007. I also tried changing parameters through the control panel (I work under Windows XP) but no luck with that either. Is there any other way to improve the sound quality in PowerPoint 2010?
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JSRWilsonConnect With a Mentor Commented:
I don't think the native recording quality can be improved in 2010. It's not that bad though (for speech) and unlesss you have an excellent playback system usually the issue is the microphone used.

That said we never use it at all. Record the sound narration elsewhere and insert the sound. We have the luxury odf a small studio but something like Audacity (free) will do a much better job.
judicoAuthor Commented:
I found PP2007 on another computer, set up the parameters (22050 16bit Stereo), recorded a text, saved the file and re-opened the file in PP2010. Not only is the recorded text full of static (and not stereo at all) but also the newly recorded piece is accompanied by a lot of static. So, probably that method won't work.
judicoAuthor Commented:
The quality is pretty bad on my machine. Not only is it mono but has lots of static too. I'm using a 15'' Retina MacBook Pro. Don't even know where the mic is located. Funny thing, even the employees at several Apple stores couldn't show me where the mic is located. In addition, the Retina doesn't even have an audio in. As you recommended, I just tried it with WaveLab and, indeed, the sound is great. Somehow, though, it isn't as convenient to integrate as it would've been if PowerPoint itself were recording properly. But maybe I shouldn't agonize too much over this and will have to accept the status quo.
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