If you’re a clever fellow or gal you can isolate the cable using some paper towel cylinders and some rubber band and pencils.
chop stick holders.
I just noticed that chop stick holders hold the chopsticks about 1/2 inch, or 1 cm, from the table.I thought they might make good cable risers. They're cheap and made of wood or bamboo.You will need quite a few, so low cost is important.I've never used cable risers and I'm a bit skeptical, but this is might be a cheap way to experiment rather than let my uninformed bias rule!