Apparatus for producing ensemble tone in an electric musical ins

Details Apparatus for producing ensemble tone in an electric musical ins Apparatus for producing ensemble tone in an electric musical ins

1981-02-02

1982-10-12

Witkowski, Stanley J.

Music

Instruments

84DIG4, G10H 102, G10H 700

Patent

active

043532799

ABSTRACT:
An ensemble effect is produced in a digital tone generator by providing a master data set of words having values corresponding to the relative amplitudes of equally spaced points along one cycle of a waveform of a musical tone in which the fundamental frequency is deleted. These values are read sequentially and repetitively from a memory to produce a first analog tone. A second analog tone is produced by multiplying a data set corresponding to the fundamental frequency by a low frequency sinusoid. The first and second analog tones are summed to yield a musical tone having an ensemble effect.

REFERENCES:
patent: 3809792 (1974-05-01), Deutsch
patent: 3884108 (1975-05-01), Deutsch
patent: 3978755 (1976-09-01), Woron
patent: 3994195 (1976-11-01), Chibana et al.
patent: 4112803 (1978-09-01), Deutsch
patent: 4205579 (1980-06-01), Kakehashi
patent: 4257303 (1981-03-01), Nagai et al.
patent: 4259888 (1981-04-01), Gross
patent: 4273019 (1981-06-01), Goto
patent: 4294155 (1981-10-01), Turner

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