Emulate microphone input (C#)?

I would like to know if there is any way to emulate microphone input. for example if im on skype or something and i want to show a song to the person im talking to. instead of putting the microphone up to the speaker, is there any way to emulate the microphone input so that it sounds perfect?





also, i am interested in how such software would work.i am a C# and C++ programmer and would like to know how i would go about making a program that does this.





thanks for your help

Emulate microphone input (C#)?
no you have to link the mic