Comment by ssl-3

This wheel has already been invented. Amazon Echo devices can detect (and respond to) beeping appliances.

I have one in the kitchen (which is near the laundry), and another one in my office (where I cannot hear the things in the kitchen).

When things beep, the one in the office says "beep beep".

And if things beep for a long time -- I think it's 2 minutes or something -- it also notifies my phone.