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Proceedings Paper

Reading and processing of audio information reproduced from Edison phonograph cylinders by method of laser interferometry
Author(s): Semen M. Shanoylo; Igor V. Kosyak; Vyacheslav Petrov; Andrey A. Kryuchin
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Paper Abstract

The types of distortions present in audio signals reproduced from Edison phonograph cylinders are considered and classified. An effective approach and algorithm for processing of obtained audio information is proposed. It is shown that the use of a sound signal with frequency range up to 20 KHz at processing has two obvious advantages. The first one allowed to retain the highest harmonics of a sound signal which are not perceived directly by ear, but have a positive influence on the formation of a common sound picture. The second one - in this signal it is more convenient to remove pulse interference (clicks, crackling), since the pulse fronts are steeper and the probability of their detection is increased.

Paper Details

Date Published: 22 October 2001
PDF: 8 pages
Proc. SPIE 4402, Laser Techniques and Systems in Art Conservation, (22 October 2001); doi: 10.1117/12.445662
Show Author Affiliations
Semen M. Shanoylo, Institute for Information Recording (Ukraine)
Igor V. Kosyak, Institute for Information Recording (Ukraine)
Vyacheslav Petrov, Institute for Information Recording (Ukraine)
Andrey A. Kryuchin, Institute for Information Recording (Ukraine)


Published in SPIE Proceedings Vol. 4402:
Laser Techniques and Systems in Art Conservation

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