Synthesizer type electronic musical instrument with volume envel

Details Synthesizer type electronic musical instrument with volume envel Synthesizer type electronic musical instrument with volume envel

1975-12-19

1977-06-14

Schaefer, Robert K.

Music

Instruments

84 113, G10H 102

Patent

active

040289788

ABSTRACT:
A synthesizer type electronic musical instrument in which a volume envelope imparted to a tone signal decays with a decay time after release of a key. In such an electronic musical instrument, the decay time of the volume envelope is caused to vary according to the note of the key being actuated. As a decay time controlling signal, a pitch determining voltage signal is applied to a control voltage generator for a voltage-controlled amplifier, or is adapted to control a control voltage from the control voltage generator so that the control voltage may be of a waveform having a decay time which depends on the magnitude of the pitch determining voltage signal.

REFERENCES:
patent: 3848092 (1974-11-01), Shamma
patent: 3886836 (1975-06-01), Hitoshi
patent: 3902392 (1975-09-01), Nagahama
patent: 3949639 (1976-04-01), Adachi

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