I looked in Control Panel (Windows Vista, on a Toshiba Satellite laptop computer) to try to see in Sounds and in "Smart Audio", to find what are all the microphones on the computer, but I see many references to what seem to be duplicated names. There is Conexant High Definition Smart Audio 221, and that's about all I find; even when I also look in the Smart Audio item in Control Panel.
I then made a screen cast recording (using Screencast-o-matic, the installed form of the software), and there were TWO microphone selections to make. No indication through screencast-o-matic what they were both or how they differ. One labeled Default, and the other labeled Conexant High Def...
So I made a recording with the Default selected microphone. The sound quality was poor. Really poor!
I made an effort, not really that achieved any understanding, but to be more thorough in knowing more about that other option in mic choice in screencastomatic software - and I made a test recording screencast but this time selected the Conexant High Definition microphone. SURPRISE! I played this test recording using three different media players, and the sound quality was much better with this setting.
I am confused about how I might have the same one single microphone on my computer, but making one selection or the other for screencast recording software would give bad sound quality or good sound quality. Is this really ON THE SAME MIC, or do I have two different microphones but do not know how to recognize this?
Can some of you straighten me out about this?