A study on the skipping of the compact disk player

Author

Oh, Sang-Kyoung ; Kim, Gyu-Chool ; Son, Jin-Seung ; Joo, Jae-Man

Author_Institution

Samsung Electronics Co. Ltd., Suwon, South Korea

Volume

38

Issue

3

fYear

1992

fDate

8/1/1992 12:00:00 AM

Firstpage

208

Lastpage

213

Abstract

The causes of skipping by sound pressure of a speaker in a compact disk player were studied through the analysis of the error signal from the optical pickup and the modal analysis. It was ascertained that skipping was induced by the nodal circle mode of the compact disk and the vibration energy was transmitted through the air and mechanical components of the compact disk player. It was proved that the cause of skipping was closely related to the natural frequencies and vibration mode shapes forming the nodal circle. This results in increased relative displacement between disk and optical pickup when the disk is excited by external excitation sources. The reduction of relative motion between disk and pickup when the external excitation is induced is considered as a method for solving the skipping problem

Keywords

Hi-Fi equipment; sound reproduction; vibrations; compact disk player; error signal; external excitation sources; increased relative displacement; modal analysis; natural frequencies; nodal circle mode; optical pickup; relative motion; skipping; sound pressure; sound reproduction; vibration energy; vibration mode shapes; CD recording; Circuits; Frequency; Loudspeakers; Motion measurement; Optical receivers; Optical sensors; Servomechanisms; Signal analysis; Stimulated emission;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.156685

Filename

156685