XLR to RCA Cable manufacturers tell you that in simple terms, an audio interface is a device that connects microphones and other sound sources to a computer, which acts as a bridge between analog and RCA. XLR to RCA Cable manufacturers tell you that audio interfaces are usually used with front microphones, and a range of others.

You may ask yourself this: "Since the audio interface is mostly used in conjunction with it, can I just buy a channel control row or a preamplifier?" XLR to RCA Cable manufacturers tell you to solve this problem. The key is the conversion between analog and digital. XLR to RCA Cable manufacturers tell you that traditional preamplifiers and channel control panels send out digital audio signals for computers. An audio interface is a device that converts an input analog signal into a digital signal output so that it can be used by a computer.
XLR to RCA Cable manufacturers tell you that if you care about the quality of your recorded audio, you'll quickly become unhappy with the limited audio capabilities that come with your computer. Since most consumer-grade sound cards are not equipped with high-quality analog-to-digital converters, the sound quality is reduced after the analog signal is converted to a digital signal. XLR to RCA Cable manufacturers tell you that if you just listen or use, then this analog/digital signal converter is enough. However, consumer-grade sound cards often lack the accuracy to achieve high dynamic headroom and audio signals, and cannot meet the needs of professional fields.
Another drawback of consumer grades is that most of them can only handle two channels of audio simultaneously, so it's almost impossible to capture a drum kit or an entire band without reprogramming the signal. XLR to RCA Cable manufacturers tell you that in addition to the poor quality of analog/digital signal conversion, consumer-grade sound cards are prone to excessive delay and jitter, resulting in poor overall sound quality.