Win CE 5 Microphone level

Hi,
I want to develope an application with VS2008 c# that run under Win CE 5 on
my FriendlyArm board... the application has to do something when the
microphone level pass a threshold (like a big noise).

Do you know how to work with Mini2440 microphone ?

Thnx a lot for the help

Problem solved...

Try the Soundcatcher application from "CodeProject" it works well!!!

Thnx to all!