Method and apparatus for reproducing a musical presentation

Details Method and apparatus for reproducing a musical presentation Method and apparatus for reproducing a musical presentation

G - Physics

10

H

84/1.1

G10H 7/00 (2006.01)

Patent

CA 1118243

ABSTRACT OF THE DISCLOSURE There is disclosed a method and apparatus for reproducing a musical presentation wherein musical data, from such presentation, such as keyboard actuations of a keyboard-type musical instrument, is encoded and stored in a code which has information contained in the transitions only and the sense and direction of such transitions are ignored. This avoids several major drawbacks of bi-phase level code previously disclosed because the (1) phase of the signal need not be maintained, and (2) the bi-phase level code cannot be recovered following a dropout until a 1-0 or a 0-1 transition occurs. There is also disclosed a data dropout detection system for assuring that the wrong music is not played.

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