I just hope someone can help!
Only in the sense that we know what it is. It’s the USB digital system leaking into the audio. Is this a Yeti, by any chance?
In general, this happens when the maker tries to run the super-sensitive microphone electronics directly from the 5 volts supplied by the computer down the USB cable. The higher-end electronics and MicPres don’t do this.
My Shure X2U, for example, has other problems, but “frying mosquitoes” isn’t one of them.
The stand-alone Mic-Pres like the MBox Mini-2 Mic-Pre and digitizer recommended by ACX don’t do it, either. In general, any USB box that features “48 volt Phantom Power” (in those exact words) isn’t going to do it because they all have internal processing to get rid of it.
As you probably found, Noise Reduction doesn’t do well here because the sound is of the exact pitch as babies screaming on a jet. Ever try to ignore that?
We have the comb filter generator and notch filters to get rid of in Brute Force, but that can leave the show sounding funny because, in fact, there are now pieces of the show missing (and we can’t do it in real time, the other frequent request).
In the face of heavy engineering trying to find a sure-fire solution, the only “get out of jail card” is to rip the device apart. Unless you have a soldering iron and fine selection of hand tools, not likely to happen. If you do have such a selection, post back.
There are posters who have tried multiple computers, multiple cables, etc. etc, and the problem may change, but it never goes away.
Call the store or the maker and complain. We think Yeti has gotten away with it for so long because nobody made a big enough fuss. Everybody thinks it’s their own personal problem and not a bad product.