System for controlling output of electronic musical instrument

Details System for controlling output of electronic musical instrument System for controlling output of electronic musical instrument

1989-03-31

1990-11-27

Perkey, W. B.

Music

Instruments

Electrical musical tone generation

G10H 102, G10H 700

Patent

active

049727540

ABSTRACT:
The inventive system comprising a memory for storing the ADSR data, a clock controller for selecting the clock pulses, a counter for counting the output of the clock controller, a data switching means for buffering the output data of the memory, a holding means for holding the output of the data switching means, a comparator for comparing the output of the memory with the output of the holding means, and main controller. The main controller inputs a control signal to control the data access time in the memory and the outputs of the switching means and holding means. According to the present invention, the release data are outputted immediately after the putting off of the keyboard signal to produce more accurate ADSR data.

REFERENCES:
patent: 4178826 (1979-12-01), Hiyoshi et al.
patent: 4628790 (1986-12-01), Deforeit

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