We (nostomach and I) don't, but that's because we have one of those silent noir models. The kind that open their mouth to meow but only some presumably ultrasonic noises come out, but for the occasional quiet, quite small squeak. I'm guessing ultrasonic because mice squeak in the ultrasonic range and cats can hear them. One day, when my recording equipment functions again, I'm going to try recording her and seeing if anything is picked up beyond the range of human hearing.

And, she's actually a pretty good sport about being held and cuddled (we got her as a wee one) so we're not gonna spurl things by trying to annoy her into yodeling we can't even hear. :)

Our previous cat, though, she was more of a fire-truck wailer than yodeler, and we took much advantage of that (until she literally clawed her way free).