How to eliminate microphone noise?

Question

Audio

Hello.
I use a bunch of Steinberg UR22mkII (external sound card, has 48V phantom power) + a super-budget Behringer C-1 condenser microphone. Faced a problem: the level of background noise is disgustingly huge. Moreover, this is not the noise of the environment, and not even the side noise of the microphone / audio interface. The noise is low-frequency, somewhat similar to buzzing and vibration.
Question: how to get rid of this noise? And is there any way at all other than grounding the house?

Answer 1

Decided!
The problem is that the inserted cable is not tight enough! The method described under the spoiler can help, but I completely removed the noise by twisting the microphone holder. Due to the fact that before that it was slightly twisted, the cable, although a couple of millimeters, did not reach.

spoiler

Случайно наткнулся на это видео https://www.youtube.com/watch?v=Uhao8YBK4d8 , в нём говорилось, что надо сжать металлическую решетку микрофона, так как она со временем может терять форму. Я сжал её, и шум полностью пропал. А я ведь был уверен, что проблема в заземлении.

Answer 2

I had the best microphone - the wired dialog headset had rubles for 100 (8 years ago), not thousands, namely rubles ... disgustingly fragile plastic of the headset (I never even put it on) but an excellent sensitive microphone that the cheap one worked with the motherboard and the sound card built into it, .. I don’t know if there were noises or if it was the regular noise reduction that worked fine, but the interlocutors heard and understood me perfectly when I walked around the whole apartment (i.e. I went behind two concrete walls).
After that, I took different cheap and not very headsets, and I have never heard such a quality. From here, a summary - the world has gone crazy, it produces shit, regardless of what kind of wrapper it is wrapped in.

Answer 3

If the noise comes from the movement of the mouse, then the computer's power supply is to blame. If the noise is constant, alas, the microphone itself is worn out, it has malfunctions in the form of noise, rustling and loss of sound. The simplest thing is to try replacing the XLR cable.
Your equipment is quite expensive, I think there is no need to ground it. To check the interference, take everything to another place, to the country. If this is still interference, then there will be no other place