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Alan Dower Blumlein's
- Alan Dower Blumlein's stereo breakthrough began in 1931 when he visited the cinema with his wife Doreen. Frustrated that the sound from a single speaker didn't match up with the actors and action on the screen, he told his wife he had a better idea.
www.cnet.com › science › meet-alan-blumlein-the-man-who-invented-stereoThe fascinating story of the man who invented stereo (and ...
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Feb 27, 2018 · By definition, a loudspeaker is an electroacoustic transducer that converts an electrical audio signal into a corresponding sound. The most common type of loudspeaker today is the dynamic speaker. It was invented in 1925 by Edward W. Kellogg and Chester W. Rice.
- Mary Bellis
Photophone receiver, one half of Bell's wireless optical communication system, ca. 1880. Bell and his assistant Charles Sumner Tainter jointly invented a wireless telephone, named a photophone, which allowed for the transmission of both sounds and normal human conversations on a beam of light.
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- United Kingdom (1847–1922), British-subject in Canada (1870–1882), United States (1882–1922)
The hole below the lowest woofer is a port for a bass reflex system. A loudspeaker (commonly referred to as a speaker or speaker driver) is an electroacoustic transducer [1] : 597 that converts an electrical audio signal into a corresponding sound. [2] A speaker system, also often simply referred to as a speaker or loudspeaker, comprises one or ...
Jul 17, 2017 · Edouard-Léon Scott de Martinville (1817-1879) Who Invented Sound Recording? Thomas Edison was catapulted to international fame with his 1877 invention of the phonograph—a machine that recorded and played back anything that it “heard.” But Edison was not the first person to record sound.
Nov 9, 2009 · Alexander Graham Bell, best known for his invention of the telephone, revolutionized communication as we know it. His interest in sound technology was deep-rooted and personal, as both his...
Many pioneering attempts to record and reproduce sound were made during the latter half of the 19th century – notably Édouard-Léon Scott de Martinville 's phonautograph of 1857 – and these efforts culminated in the invention of the phonograph by Thomas Edison in 1877.
Aug 14, 2020 · The system was invented by James Bullough Lansing, John Kenneth Hilliard, and Douglas Shearer.
