Harvey Fletcher Scientist

Harvey Fletcher (September 11, 1884 – July 23, 1981) was an American physicist. Known as the "father of stereophonic sound". He is credited with the invention of the audiometer and the first electronic hearing aid. He is remembered as a trail-blazing investigator into the nature of speech and hearing, and for his numerous contributions in acoustics, electrical engineering, speech, medicine, music, atomic physics, sound pictures, and education.

Personal facts

Birth date	September 11, 1884
Birth place	Provo Utah , United States
Nationality	United States
Date of death	July 23, 1981
Place of death	Provo Utah , United States
Education	University of Chicago Brigham Young University
Known for	Hearing aid Stereophonic sound