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Japanese

AN ANALYTICAL OBSERVATION ON AUTOMATIC AUDIOGRAM Takashi Arai 1 pp.29-33
Published Date 1964/1/20
DOI https://doi.org/10.11477/mf.1492203192
  • Abstract
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By measuring the time relation between the turning-on the microswitch of the audiometer by the examiner on the one hand and the change that would be created by this process on the tonal potential of the latter instrument on the other by means of a two-beam oscillos-cope, the amplitudes taken on the normal ear and the ear affected with decreased amplitude were analytically examined. The results were as follow:

(1) The points at which the tone makes its ap-pearance and disappearance differ in the normal ear affected with decreased ampli-tude.

(2) The difference of 1 db/sec. and that of 2 db/sec. in the amplitudes of the two ears men-tioned above showed a fundamental difference.


Copyright © 1964, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 印刷版ISSN 0386-9679 医学書院

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