There are homes out there (from apartments to shacks to mansions) where there is altogether too much of the wrong kinds of noise. I’m not talking about playing the music too loudly. There is a time and place for that. I’m talking about the voices raised in unkind words towards spouse and offspring.
Are there really any words that need an increase in volume in order to make them more effective? Does anyone you know really respond better when they are shouted at?
Most of use really hate being yelled at. It makes us feel belittled and puts us on the defensive. The verbal assault can be more devastating to our self esteem than any other failure we experience in life.
If this is common in your home, then the challenge would be to go through a day or two or three or a month without raising your voice above a normal speaking tone, as if you were addressing your boss or a police man or some other person to whom yelling would bring dire consequences.