An audio interface is a sound card. Just generally geared toward music production, rather than gaming or just general sound that more likely use the term sound card instead.
Well, although you don't *have* to have a sound card, it's generally a good idea. You probably don't want system beeps going out through your monitor speakers at top volume.
Well, although you don't *have* to have a sound card, it's generally a good idea. You probably don't want system beeps going out through your monitor speakers at top volume.