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  2. Raymond A. Litke - Wikipedia

    en.wikipedia.org/wiki/Raymond_A._Litke

    Raymond A. Litke (1920-1986) was an American electronic engineer, the inventor of a practical wireless microphone, and the first to patent the wireless microphone.He was born and raised on a farm near Alma, Kansas, but spent most of his adult life in San Jose, California.

  3. James West (inventor) - Wikipedia

    en.wikipedia.org/wiki/James_West_(inventor)

    First patent on foil electret microphone by G. M. Sessler and J. E. West (pages 1 to 3) West was born on February 10, 1931, in Farmville, Prince Edward County, Virginia as the elder of two children to Samuel Edward and Matilda West.

  4. David Edward Hughes - Wikipedia

    en.wikipedia.org/wiki/David_Edward_Hughes

    Hughes also worked as a practical experimenter, coming up with the printing telegraph in 1855. He moved back to London in 1857 to sell his invention, and worked on the transmission of sound over wires. He worked on microphones and the development of the induction balance (later used in metal detectors). Despite Hughes' facility as an ...

  5. History of sound recording - Wikipedia

    en.wikipedia.org/wiki/History_of_sound_recording

    Ring-and-spring microphones, such as this Western Electric microphone, were common during the electrical age of sound recording c. 1925–45.. The second wave of sound recording history was ushered in by the introduction of Western Electric's integrated system of electrical microphones, electronic signal amplifiers and electromechanical recorders, which was adopted by major US record labels in ...

  6. Microphone - Wikipedia

    en.wikipedia.org/wiki/Microphone

    Shure Brothers microphone, model 55S, multi-impedance "Small Unidyne" dynamic from 1951. A microphone, colloquially called a mic (/ m aɪ k /), [1] or mike, [a] is a transducer that converts sound into an electrical signal.

  7. Sound recording and reproduction - Wikipedia

    en.wikipedia.org/wiki/Sound_recording_and...

    Between the invention of the phonograph in 1877 and the first commercial digital recordings in the early 1970s, arguably the most important milestone in the history of sound recording was the introduction of what was then called electrical recording, in which a microphone was used to convert the sound into an electrical signal that was ...

  8. The Thing (listening device) - Wikipedia

    en.wikipedia.org/wiki/The_Thing_(listening_device)

    The Thing was designed by Soviet Russian inventor Leon Theremin, [7] best known for his invention of the theremin, an electronic musical instrument.In Russian, the device is called Эндовибра́тор (endovibrator).

  9. List of Edison patents - Wikipedia

    en.wikipedia.org/wiki/List_of_Edison_patents

    Edison is credited for contributing to various inventions, including the phonograph, the kinetoscope, the dictaphone, the electric lamp (in particular the incandescent light bulb), and the autographic printer. He also greatly improved the telephone by inventing the carbon microphone. Most of these inventions were not completely original but ...