a smartphone (ie. motorola) sounds better than any PC souncard? I've been testing various cards from C-Media's 8738 to an Xonar Essence ST and other brands, PC soundcards sound like software playback, only if you play from solid source like usb drive or ssd sounds more like hardware playback. but, still a smartphone sounds better than a PC souncard, even macbooks with dunnowhatchipset audio sounds better than pc. Why?