Hi! I am using a small converter to change analog signals to digital. Ultimately, this music is heading for my MacBooks Pro and Garageband. The problem is the output on the converter is coaxil S/PDIF/ or TOSLink, both are no good to me. The only way I know of to get it into MacBook is thru a USB port and I can't find any way to get those two adapted to a USB cable. There is probably a simple explanation and electronics are not my cuppa. Can anyone offer a solution or an alternative way to do this? Thanks Mucho!