Optical reproduction of sounds from old phonographic wax cylinders

Takashi Nakamura; T. Ushizaka; Jun Uozumi; Toshimitsu Asakura

doi:10.1117/12.294398

8 December 1997 Optical reproduction of sounds from old phonographic wax cylinders

Takashi Nakamura, T. Ushizaka, Jun Uozumi, Toshimitsu Asakura

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Proceedings Volume 3190, Fifth International Topical Meeting on Education and Training in Optics; (1997) https://doi.org/10.1117/12.294398
Event: Fifth International Topical Meeting on Education and Training in Optics, 1997, Delft, Netherlands

Abstract

It is shown that reproduction of sounds from old wax cylinders using various optical methods gives quite excellent materials in optics education. The laser-beam reflection method is explained by the geometrical optics, and is further discussed on the basis of the diffraction theory. Various techniques for improving the quality of reproduced sounds are introduced. Fiber optics is used for reproduction of sounds in a low pressure stylus contacting method. Applications of the laser- beam reflection method to other analogue recordings are introduced.

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Takashi Nakamura, T. Ushizaka, Jun Uozumi, and Toshimitsu Asakura "Optical reproduction of sounds from old phonographic wax cylinders", Proc. SPIE 3190, Fifth International Topical Meeting on Education and Training in Optics, (8 December 1997); https://doi.org/10.1117/12.294398

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