This is an application to show recording audio from C# code, using the new initialization structure of the ActivateAudioInterfaceAsync Win32 API that allows you to pass a process to be included or excluded (and it's children).

It uses NAudio library https://github.com/naudio/NAudio

It contains the Microsoft sample code https://learn.microsoft.com/en-us/samples/microsoft/windows-classic-samples/applicationloopbackaudio-sample/

And the improved sample code from: https://github.com/Naseband/ProcessLoopbackCapture