title: Timing in C# real time audio analysis
body: <p>I'm trying to determine the "beats per minute" from real-time audio in C#.  It is not music that I'm detecting in though, just a constant tapping sound.  My problem is determining the time between those taps so I can determine "taps per minute"  I have tried using the WaveIn.cs class out there, but I don't really understand how its sampling.  I'm not getting a set number of samples a second to analyze.  I guess I really just don't know how to read in an exact number of samples a second to know the time between to samples.</p>
  
  <p>Any help to get me in the right direction would be greatly appreciated.</p>