Absolute silence, as in not even white noise? I used to live in Brazil where families often leave the TV on in the other room just in order to have noise. My ve

Absolute silence, as in not even white noise? I used to live in Brazil where families often leave the TV on in the other room just in order to have noise. My version of that is to have the fan on in the summer, maybe some instrumental music playing lowly anytime, or leaving the back door open to where I can hear the birds.