3 Earliest Audio Recording Inventions

The phonautograph, invented by Édouard-Léon Scott de Martinville in 1857, made the earliest known intelligible recording of a human voice, predating Thomas Edison's phonograph of 1877.

Sources

• History of sound recording - Wikipedia
• The Origins of Sound Recording - Thomas Edison National Historical Park (U.S. National Park Service)
• Listen to the oldest known recording of a human voice | BBC Global - YouTube
• The Anniversary of the first voice recording, or is it? - Center For Recorded Music
• History of Recorded Sound - Center for Popular Music

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