Harvey Fletcher (1884-1981) was one of the most creative and intelligent scientists to impact audiology and hearing aids. Dr. Fletcher produced much of his extraordinary work while directing Bell Labs, created in 1925. Research involving sound, spectrographs, hearing aids, telephones, vacuum tubes amplifiers, mini-vacuum tubes, vibro-tactile devices and perception, word recognition ability, stereo sound, bandwidth, and more was conducted (and much of it originated) in the Bell Telephone Labs in New Jersey.