Electronic musical instrument

Details Electronic musical instrument Electronic musical instrument

1978-04-20

1980-10-14

Truhe, J. V.

Music

Instruments

84 124, 84 121, 84 122, 84 126, G10H 102

Patent

active

042274354

ABSTRACT:
A musical tone varying in tone color with the lapse of time is produced in an electronic musical instrument by retrieving a plurality of different waveshapes from a plurality of memories and then by mixing these retrieved waveshapes at a variable ratio according to a plurality of time-dependent parameters. In order to ensure a simpler arrangement of the instrument while maintaining richness in tone color variation characteristics of the produced musical tone, the mixing is adapted to be performed by carrying out multiplications individually on the respective retrieved waveshapes with the associated time-dependent parameters and then by adding up the resultant values to obtain the aimed musical tone. Some of the time-dependent parameters may be derived from other time-dependent parameter in the mixing procedure of several different waveshapes.

REFERENCES:
patent: 3443463 (1969-05-01), Campbell
patent: 3467759 (1969-09-01), Campbell
patent: 3836693 (1974-09-01), Ichikawa
patent: 3902396 (1975-09-01), Hiyoshi
patent: 3935783 (1976-02-01), Machanian
patent: 3981217 (1976-09-01), Oya
patent: 3992970 (1976-11-01), Chibana
patent: 3999458 (1976-12-01), Suzuki
patent: 4077294 (1978-03-01), Hiyoshi
patent: 4082027 (1978-04-01), Hiyoshi
patent: 4117759 (1978-10-01), Kato
patent: 4138915 (1979-02-01), Nagai

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