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Harvey Fletcher : ウィキペディア英語版 | Harvey Fletcher
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 an early 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. ==Early years== Fletcher was born in Provo, Utah. He graduated from Brigham Young High School in 1904. He enrolled at Brigham Young University (BYU) and graduated in 1907 with a bachelor's degree. He married Lorena Chipman. They are the parents of six children.〔L. Tom Perry Special Collections, BYU Library. http://files.lib.byu.edu/ead/XML/MSS1233.xml Retrieved 2014.12.20〕 Fletcher is the father of James C. Fletcher former president of the University of Utah and the 7th NASA administrator.〔http://www.et.byu.edu/~tom/family/Harvey_Fletcher/harvey_fletcher.html retrieved 2014.12.20〕
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