By means of an analog-computer technique, geometric playback distortions are simulated during disc recording. Second- and third-order harmonics are recorded so that the vertical and lateral components are free of tracing distortion in playback and pinch-effect distortion is removed in lateral recording. The method also offers the possibility of correcting the vertical recording angle by electrical means.

Authors: Redlich, Horst; Klemp, Hans Joachim
Affiliation: Telefunken-Decca, Berlin, Germany
JAES Volume 13 Issue 2 pp. 111-118; April 1965
Publication Date: April 1, 1965

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