For the home user looking to record audio on a computer, there are two microphone formats to choose from: USB and analog. USB mics connect to any open USB port, and include their own processing hardware and drivers, while analog audio mics input through a 3.5mm jack and rely on the computer system for processing. This makes the choice between mic types largely dependent on the quality of existing sound hardware in the computer.

USB Mic Vs  Audio Mic - 25