Early Talking Doll Recording Discovered
On May 11, 2011, scientists at the Lawrence Berkeley National Laboratory in Berkeley, California recovered sound from an artifact that historians believe is the earliest surviving talking doll record.
The cylinder phonograph record. The historic tag reads: “Tin Phonograph Cylinder […]l Record”.
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Opposite side of the cylinder phonograph record and back-side of the historic tag.
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View of record showing the recorded groove surface.
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The groove surface viewed under a microscope. The nearly uniform groove width shows Edison's early square "chisel-cut" recording technique, used prior to November 1889.
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View of record showing its out-of-round shape.
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Carl Haber, Senior Scientist and Earl Cornell, Computer Systems Engineer working with the record at the Lawrence Berkeley National Laboratory.
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Three-dimensional optical scanner used to model the surface of the recording.
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Earl Cornell calibrating the scanner to accommodate the irregular shape of the record surface.
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Close-up view of scanning in progress.
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The computer used to interpret the scan.
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Screen shot of software used to interpret the scan.
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