Your question got cut off because you put it all in the topic section. But by audio jack are you reffering to the 3.5 mm jack with a green ring around it? If you are trying to use just that you dont need to on a laptop. Look for a jack with a picture that looks like a speaker or headphone next to it and plug in the green cable from your x12s. Now look for a cable with a microphone picture near it and plug in the pink cable. Now plug in the usb from the x12 and youre good to go