Harmonic coefficient generator for an electronic musical instrum

Details Harmonic coefficient generator for an electronic musical instrum Harmonic coefficient generator for an electronic musical instrum

1987-07-06

1989-01-31

Witkowski, Stanley J.

Music

Instruments

84 123, 84 127, G10H 114, G10H 700

Patent

active

048007943

ABSTRACT:
A keyboard operated electronic musical instrument is disclosed which has a number of tone generators each of which is assigned to an actuated keyswitch. Musical waveshapes are generated by a computation using a set of harmonic coefficients. Apparatus is described for generating the set of harmonic coefficients in response to a preselected set of increment number values wherein this set is less in number than the number of harmonic coefficients in a set. The generation of harmonic coefficients is accomplished by computing linear slope variations of groups of coefficients.

REFERENCES:
patent: 4300432 (1981-11-01), Deutsch
patent: 4300434 (1981-11-01), Deutsch
patent: 4461200 (1984-07-01), Kitagawa
patent: 4466325 (1984-08-01), Takauji
patent: 4502360 (1985-03-01), Deutsch
patent: 4677889 (1987-07-01), Deutsch
patent: 4700603 (1987-10-01), Takauji et al.

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