A sound in the city of West Haven has left whole neighborhoods on edge. It’s reported as a low-frequency hum. It comes and goes, but it has been a real quality-of-life issue that neighbors want ...

BUFFALO, N.Y. — Residents in Black Rock and North Buffalo believe a facility is emitting a low frequency "hum" that has been a constant source for anxiety and inconvenience for several years. "First I ...

A metamaterial elongates the propagation path of sound waves, allowing low-frequency noise control without the need for bulky materials.

Since the early 1990s, residents of Taos, New Mexico, have reported hearing a constant low-frequency sound with no apparent or measured source. The sound is described as exterior, geographically ...