I want to measure a system\'s speaker volume by playing a sound and listening for it on a local microphone at the same time. This is for a specific application. The exact re
Take this:
http://windowsmedianet.sourceforge.net/
and use waveIn managed wrapper.
http://msdn.microsoft.com/en-us/library/ms712636(VS.85).aspx
Of course, you'll need some calibration there...