Don't confuse the colors of sound with ambient noise, which refers to the background noise present in any given setting; for ...

Living beneath elevated train tracks sounds like a nightmare for anyone wanting a little peace and quiet and a good night's sleep. But that's daily life for dwellers in a cluster of box-shaped ...

If you dislike loud noises that interrupt your sleep, you may want to consider a noise machine. It sounds counterintuitive ... the rumble of a train mixed with passenger chatter, or the rustle ...