If you're recording straight to Mac, you'll either need to rely on its internal analog-to-digital conversion, or purchase an audio interface (M-Audio is among the more popular inexpensive brands), or ...
... you can get a USB microphone, which converts to digital within the microphone and sends the results to your Mac via a USB cable. I have a Blue Microphones Snowball that works this way and I recommend it highly if it fits your budget.
― Paul in Santa Cruz (Paul in Santa Cruz), Tuesday, 4 April 2006 17:13 (twenty years ago)