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Proceedings Paper • Open Access

Optical reproduction of sounds from old phonographic wax cylinders
Author(s): Takashi Nakamura; T. Ushizaka; Jun Uozumi; Toshimitsu Asakura

Paper 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.

Paper Details

Date Published: 8 December 1997
PDF: 10 pages
Proc. SPIE 3190, Fifth International Topical Meeting on Education and Training in Optics, (8 December 1997); doi: 10.1117/12.294398
Show Author Affiliations
Takashi Nakamura, Kushiro National College of Technology (Japan)
T. Ushizaka, Hokkaido Univ. (Japan)
Jun Uozumi, Hokkaido Univ. (Japan)
Toshimitsu Asakura, Hokkai-Gakuen Univ. (Japan)


Published in SPIE Proceedings Vol. 3190:
Fifth International Topical Meeting on Education and Training in Optics
Christiaan H. F. Velzel, Editor(s)

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