Without microphones, the feat would have been impossible.Įarly phonograph recording depended on a recording horn. He demonstrated it by broadcasting Enrico Caruso’s operatic singing from the Metropolitan Opera House to other locations in New York on January 13, 1910. Lee de Forest invented the first practical amplifier. Therefore, any vibrations from the stand will not affect its performance. With this design, the microphone unit is attached to steel ring by springs. The microphone, manufactured by Western Electric, was extensively used for recording and broadcasting in the 1920s. The illustration here shows an interview with bandleader George Olsen (right) in 1926 at New York’s NBC, WJZ. By the 1920s, microphones had matured sufficiently to revolutionize all aspects of the music business. They had limited frequency response and a high noise level.Įxperiments with carbon microphones, crystal microphones, capacitor microphones, and electromagnetic microphones followed over the next half century. Early carbon microphones quickly proved adequate for telephone transmission as early as 1876, but not for most other uses. The microphone became a foundational technology in the telephone, public address, radio broadcasting, and sound recording industries. For one, it enabled the development of an entirely new approach to singing popular songs. Like all successful new technology, the microphone had a profound impact on life and culture, including the development of entire new industries.
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