They don't realize that our hearing has been trained and tuned to the wavelength of a gobble; whereas, the wavelength that the wives use has long been seared and burned (for those married a while) to where most of us are only barely able to detect that a sound has been made, let alone understand any words, etc.
For you young marrieds I will give you a tip, nodding your head in agreement and saying uh-huh a lot will help mask this hearing deficiency !