Select to get sound from certain app

[BBoundless]

I think instead, of having desktop sound and all of the mic/aux, you should just have Audio IN setting. Which controls what sounds get in and which sounds don't.
You can have a few Audio IN sources where you select a microphone AND instead of having Desktop Audio you should just be able to select which CERTAIN APP's sounds get into the recording or stream.

 

[Jack0r]

Unfortunately the Windows Audio System (I dont know enough about linux/mac) is not offering the sound output of a single program to capture. So OBS can only grab the sound of a certain device.
Which is also the reason there are so many guides out there explaining how to seperate applications.