Electronic musical instrument

Details Electronic musical instrument Electronic musical instrument

1974-06-10

1976-05-11

Hix, L. T.

Music

Instruments

84 103, 84115, G10F 500, G10H 500

Patent

active

039554597

ABSTRACT:
An automatic performance system in an electronic musical instrument comprises circuits for forming digital performance information signals by converting the displacement of movable members operated according to the contents of a performance into digital signals, and circuits for forming musical tone information signals corresponding to the contents of the performance from harmonic rich tone signals by controlling predetermined signal paths with electronic switches operated in response to the performance information signals, the digital performance information signals being detected and stored, and read out into the electronic switches at proper time instants, whereby all of the performance information signals are automatically reproduced as musical tone information signals with fidelity. The digital performance information can be automatically modified as desired in the process of storage and reproduction thereof to obtain modified musical tone information, and can furthermore be stored as information in a compressed state which contains digital signals indicating the occurrence of events in the performance and relative time information between the events.

REFERENCES:
patent: 3515792 (1970-06-01), Deutsch
patent: 3594487 (1971-07-01), Jones, Jr.
patent: 3610799 (1971-10-01), Watson
patent: 3683096 (1972-08-01), Peterson et al.
patent: 3697661 (1972-10-01), Deutsch
patent: 3746773 (1973-07-01), Uetrecht
patent: 3789719 (1974-02-01), Maillet
patent: 3809786 (1974-05-01), Deutsch
patent: 3821712 (1974-06-01), Wetzel
patent: 3865002 (1975-02-01), Shimizu et al.
patent: 3878750 (1975-04-01), Kapps
patent: 3890871 (1975-06-01), Oberheim

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