It is the easiest problem to create without there having to be any troubles with your actual audio interface, cables, or hardware. This causes static in your audio interface. If two connected devices are plugged in to separate AC sockets, you get a ground loop. Watch PS Audio explain the pros and cons of an internal and external audio interface. This is one thing to note if you haven’t purchased a sound card already and your thinking of purchasing an internal or external sound card. The sound quality is related to the hardware and not that of the sound card. The quality of sound however is not affected. An audio device with a lower noise floor would have to be turned up (volume increased) before any noise, static or hissing is heard. What this means is that hissing and interference are more prevalent in internal sound cards than that of external sound cards. Let’s consider the differences in using an internal audio interface and an external audio interface with regards to audio interference.īased on tests using spectrum analyzers, it has been found that internal sound cards have a higher noise floor than that of their external counterparts. The last thing that you can do to reduce noise is to purchase a USB noise filter. Video can’t be loaded because JavaScript is disabled: What is a Shunt? – A Galco TV Tech Tip () You get many different kinds of audio cables, such as: In general, if you want to keep a cable noise-free, I suggest a length of 25 feet or less. Unbalanced cables are very susceptible to noise. That device will switch one of the polarities around, so they are both the same again and effectively canceling out any noise that the cable might have because the noise is also flipped and is essentially out of phase with itself. Assuming they reach a balanced audio interface or any other balanced device. The signal carried along the positive and negative wires are the same, but in reverse polarity to each other. They are positive, negative, and ground wires. Balanced Cablesīalanced cables consist of 3 wires. We will first start out with balanced and unbalanced cables. There are many factors, and these could be multiple factors that could as well, be combining and compounding your audio interference when you are trying to record, making things very difficult for you. What Are The Main Factors Causing Audio Interference? There are lots of possible reasons for static in your audio interface, such as interference from a computer or cell phone. These are just a few things that could be causing you a world of problems for your recordings.Īre there main factors causing interference? lets take a look. Possibilities included infinite loops and your PC or laptop sending out radio frequencies, not to mention cables which are unbalanced or balanced. Because we are working with live current all the time, the possibilities for interference could almost be endless. There are a few common scenarios surrounding why audio interfaces get static, and we will cover them all here for you. Let’s take a look at why audio interfaces get static and why there is static in your recordings. Plug everything into one socket, and lastly, you need to check that all AC devices are turned off in your home, and any devices close to your recording equipment are not putting out RF signals. Then you need to make sure there is no infinite loop in the circuit of your devices. You need to plug them through a DI box to achieve this for some cables. The short answer is to have all your cables balanced when using them to record. The static does not come from the audio interface itself, but rather from components of your audio setup.Ĭables (including XLR cables) can cause static in your audio interface. There are several things to check and configure when removing static from your audio interface. How To Get Rid Of Static In Your Audio Interface We’ll also give a checklist you can walk through to help you fix and prevent the problem going forward. In this article, we’ll take a look at what exactly can cause static and noise in our recordings and audio interface. With all the problems that could be causing audio static and noise, there are aspects that we need to understand if we want to fix the problem of static and noise. Then, put all devices that produce RF signals in a Faraday cage. To get rid of static interference in your audio interface, you need to check that your cables are balanced, that your interface has a shunt attached to it, and that all AC devices attached to your circuit are switched off. So, I wrote this article explaining what the causes and fixes for static could be. I always thought the static was due to the audio interface I was using, but that is not always the case. For the life of me, I could not figure out what the problems were. When I started recording, I always had static and noise interference in my recordings.
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