Electronic musical instrument

Details Electronic musical instrument Electronic musical instrument

1975-09-23

1978-04-11

Weldon, Ulysses

Music

Instruments

84 113, 84 124, 84 111, 84 119, G10H 102

Patent

active

040832856

ABSTRACT:
The electronic musical instrument according to the invention is capable of controlling each level of harmonics constituting a musical tone individually and independently from each other and thereby producing a musical tone which is a close simulation of a natural musical tone. In order to produce change in the level of each harmonic with the lapse of time separately and independently, information respectively representing a peak level of attack, attack time from start of generation of a tone to the peak level, a sustain level and decay time from the peak level to the start of the sustain level is memorized for each harmonic and the level of each harmonic is controlled in response to such information.
In one example of the electronic musical instrument, the level of each harmonic constituting a musical tone is amplitude-modulated with a different period and depth.

REFERENCES:
patent: 3610805 (1971-10-01), Watson et al.
patent: 3610806 (1971-10-01), Deutsch
patent: 3636231 (1972-01-01), Schrecongost et al.
patent: 3809786 (1974-05-01), Deutsch
patent: 3844379 (1974-10-01), Tomisawa et al.
patent: 3882751 (1975-05-01), Tomisawa et al.
patent: 3894463 (1975-07-01), Rocheleau
patent: 3908504 (1975-09-01), Deutsch
patent: 3910150 (1975-10-01), Deutsch et al.
patent: 3913442 (1975-10-01), Deutsch

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