phonautograph definition

  • noun:
    • among the first phonographic recording devices, composed of a horn or barrel concentrating noise waves onto a membrane to which a hog's bristle had been attached, evoking the bristle to go so enabling it to inscribe a visual medium, that could transcribe noise to a visible medium but had no methods to play back the sound after it had been recorded.
    • An instrument through which a sound can be meant to produce a visible trace or record of it self. It consists essentially of a resonant vessel, frequently of paraboloidal type, shut at one end by a flexible membrane. A stylus mounted on some point of membrane layer records the motions associated with the second, because it vibrates, upon a moving cylinder or dish.
    • An instrument for registering the vibrations of a sounding body.
    • identical to music-recorder.

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