Information passing does the same sound card can end up interfering with each other. Moving parts and systems such as hard drives in computers can actually cause minor interference. When you’re dealing with audio that is being digitally converted into signals then you have to consider other sources of electricity that may be picked up. Most equipment is shielded so radio interference is extremely rare. Interference in noise is the product of interactions in electrical signaling.
But if you’re just listening at home or making music on your own than the last thing you want is a persisting buzz or static that never goes away. In fact, depending on the music you are making it you may want some of that. Though, in a loud real-life setting, it is way easier to not hear any interference static. Well, not a professional studio that you are renting but in any home system and even many professional venues and locations. Troubleshooting noise and interference in audio systems are some of the most tedious and frustrating experiences you will ever have in the studio. The second part will address how to get rid of some of the most basic noise and audio interference sources.
This is going to be a two-part post first exploring some basics of audio interference and noise.