We may receive a commission on purchases made from links. It's not surprising to hear a large commercial truck, such as an Amazon delivery van, emitting some sort of noise when driving in reverse.

A live TV hit by the Director of the National Economic Council was accompanied by an unexpected sound effect that seemed to underscore his comments about consumer prices. On Thursday, Trump said he ...

One of the most common sounds in the modern world is the beep. From microwaves and cellphones to computers and backing-up trucks, this high-pitched alert pings us from every direction. But how is it ...