I can’t figure out the reason for this phenomenon. I live in an average size apartment on the second floor in your average suburban apartment complex with your average construction (Did you see the apt. in the movie “Office Space”? Almost exactly like mine). My bedroom is on the corner of the building with a window on each wall. Outside my bedroom, about 25-35 ft. away is a sidewalk. There is also trees, grass, and your standard landscaping shrubs.
When I am in my bedroom when my two nephews are visiting and playing Trouble (the one with the popmatic dice thing that goes ker-pop), talking, and listening to the radio, it is moderately loud. However, if I go outside to the sidewalk, I can’t hear them at all. All I might hear is someone’s central heat whirring, or the somewhat muted sounds of cars on a nearby highway.
When I go back into the bedroom and the kids go outside to the sidewalk, I can hear them quite clearly. I can tell when they are talking, I can hear the “clip clop” of my nieghbor’s shoes as he is walking his dog, I can hear the “jingle jingle” of his keys and as well as the jingle of his dog’s liscence tags. I can hear him talking on his cell phone- making out some of the conversation.
What gives? Why can I hear through the walls/windows of what is going on outside when I am inside, but I can’t hear what is going on inside when I am outside?