Audio Interface Repair

USB Audio Interfaces are devices that are designed to act as a bridge between music played on physical instruments and digital computer audio. Audio Interfaces are specicifally designed for improving recorded sound quality, reduces recording latency, and acts as the next step over a computers built-in sound card by allowing musitians to process music with their computer.

While audio interfaces can provide their users with a wide variety of functions, their core functionality is converting analog audio signals to digital audio signals. When you plug in an instrument such as a guitar or microphone, the interface first boosts the weak signals using built-in preamps so that they are strong enough to work with.

The interface then converts the sound from analog to digital by breaking the sound made from your instrument into tiny voltage measurements. These measurements are taken over a thousand times per second. The measurements are assigned a numerical value based on their bit depth, which is interpreted by your computer and can be used in your computer’s recording software.

As a last step, the audio interface then converts the digital audio back into analog sound so that the user can hear it through their speakers or a set of headphones. Typically good interfaces have a heavy focus on low latency, and provide volume and gain knobs for quick adjustments.

• AVID article: What is an audio interface and how to choose one
• Audient artice: What is an Audio Interface by Jeremy Bongiorno