These are operating on EM/sound at frequencies magnitudes higher than anything in the audible range; there's basically no chance anything you can hear (no matter how loud) could interfere with this.
But are there things that produce “loud” acoustic waves at these ultrasonic frequencies out in the natural or manmade world, that we mostly just ignore because we can’t sense them? (in about the same way that we ignore e.g. the massive amount of radio interference that switching power supplies create, because we don’t use those bands for anything)