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Phonautograph - What does it mean?

phonautograph | |

phonautograph

English

Noun

(en noun)
  • One of the first phonographic recording devices, consisting of a horn or barrel focusing sound waves onto a membrane to which a hog's bristle was attached, causing the bristle to move so enabling it to inscribe a visual medium, which could transcribe sound to a visible medium but had no means to play back the sound after it was recorded.

    • Not English

    has no English definition. It may be misspelled.