Do you often hear the ringing of switching power supplies and devices when you are in a quiet space?
I'm curious, how many people are aware of these sounds. I have designed, etched, and built my own switching power supplies along with winding my own transformers. I am aware of the source of the noise. So, does anyone else hear these high frequency sounds regularly?
Age related hearing loss can actually make you more sensitive to certain sounds. I have difficulty understanding speech but increased sensitivity to sounds including electrical buzzing.