DirectX DirectInput C# measure audio input

Question

C# 2008 SP3

I have developed a softphone and our client would like to have a feature that would test if the microphone is working.

I was thinking to have a progress bar that would go up and down based on the nose level.

I have done a bit of research on this. But I couldn't find any tutorials on directX DirectInput what would help me measure the audio input. Does anyone know of any websites where this has been done before?

I am new to programming in direct x. Do I have to download the DirectX sdk?

Many thanks,

Answer 1

Checkout it may help. NAudio based Voice recorder