Comment by zsmi
5 years ago
You're not imagining it at all.
This is an important consideration all electrical engineers should take seriously when designing products for people. It's a shame many don't.
https://product.tdk.com/en/techlibrary/solutionguide/acousti...
https://www.edn.com/reducing-mlccs-piezoelectric-effects-and...
It can be an issue even if you think you understand it at the design stage. I've sold services to identify sources so boards or assemblies can be redesigned. In one case two different clocks for two ICs on different boards interfered with each other causing problematic noise. Filtering the power supplies helped, but changing how one IC was used made the single biggest contribution to reducing the noise levels.