Envelope control for electronic musical instrument

Details Envelope control for electronic musical instrument Envelope control for electronic musical instrument

1983-01-05

1984-01-24

Witkowski, S. J.

Music

Instruments

84 113, G10H 1057, G10H 700

Patent

active

044269048

ABSTRACT:
Waveform data for converting attack, decay and release status sections of a musical sound envelope into an exponential function waveform is obtained from an envelope generator wherein exponential function waveform data is read out from a ROM or obtained through calculation based upon an exponential function in a digital logic processing circuit, and it is used for the envelope control of a tone signal from a digital wave generator.

REFERENCES:
patent: 4079650 (1978-03-01), Deutsch et al.
patent: 4083285 (1978-04-01), Chibana
patent: 4133244 (1979-01-01), Hiyoshi et al.
patent: 4135424 (1979-01-01), Okamoto
patent: 4185529 (1980-01-01), Kitagawa
patent: 4205577 (1980-06-01), Deutsch
patent: 4214503 (1980-07-01), Deutsch
patent: 4267763 (1981-05-01), Futamase et al.
patent: 4332183 (1982-06-01), Deutsch

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