I am trying to set up my computer to play music through stereo mix and microphone at the same time (for Karaoke) but I'm pretty sure my sound card doesn't have that capability (Realtek high def audio). Right now I play everything through my mic (picks up music from my speakers and voice together). The problem is I can't hear myself on the speakers to know if the volume is right. Is there a way to fix that? or can you suggest a sound card that will do what I need it to do?