Reply To: I know the Audient iD4 box is low-noise, but this is pushing it


And please check with Quicktime as I explained before. And Audio-MIDI-Setup. These are the main sources for software problems outside of SoundJack or any other audio software.
If the same happens with Quicktime and you checked the current mic type, the use of a two-sided XLR-connection-cable and phantom power before, it might be that the mic input of the interface is defect.