C# Audio Recognition [on hold]

I'm trying to build an application that increases a counter whenever a certain sound is played. So, it has to be constantly receiving and analyzing a microphone input.

Let's say, for example, that I'm playing a game. Whenever I save, the game plays a certain sound. So, I put this pre-recorded sound file in the application start it up. Now, whenever the microphone picks up the sound indicating the game is being saved, the counter is incremented.

Does anyone know of any way to implement this in a C# application? Or perhaps a solution that is already out there to do the same thing?