I have a Rode AI-1 audio interface that makes noise on my PC, specifically. I think I've tried everything to remove the noise, but without success. At first, I told myself it was a ground loop issue. So I bought an iDefender3.0 by iFi with a power adapter. After trying it, the buzzing noise is still there so I doubt it has something to do with the power. I used different power outlets just to make sure. Sometimes, the host computer fails to connect to it and decides to work again after plugging it again and again. I recorded the noise so you can hear it. It happens periodically. The sample rate was 96kHz. At 41kHz, the noise appears every 9 seconds.
I tried all of my USB ports. The 3.0 ones won't allow the interface to work. But it randomly worked once and the problem disappeared for that moment. It must be compatibility issues or something. It is interesting since the problem doesn't occur on my old laptop running Linux. So the interface is not faulty, it works fine. I even removed my graphics card from my PC and all the other devices that are not essential (mouse, keyboard, etc.), checked how well the DSP did on my system (it was good), disabled my networking card, there is just no improvement at all. At first, I was on Windows 7, then upgraded to Windows 10 and made sure the latest drivers were installed for my audio and USB ports/hubs. The interface's firmware is up to date.
Another thing to consider is that I have another external audio interface that runs on its own power. I have never experienced any problem with it.
If someone have any idea, I would be glad to hear it. I run out of options. I'm suspecting my motherboard to have faulty USB ports, but I'm not sure. If I'm at least able to make it work permanently on a USB 3.0 port, it might solve the issue. But as I said, I think there are some compatibility issues.
Also, I wanted to add that I have disabled fast boot and that there is no noise when recording sound with the same device.
- CPU: i7-3770k
- Motherboard: P8Z68 M-PRO
- Power supply: EVGA SuperNOVA 1300 G2