Musical tone generating apparatus having means for controlling t

Details Musical tone generating apparatus having means for controlling t Musical tone generating apparatus having means for controlling t

1991-03-19

1992-09-22

Witkowski, Stanley J.

Music

Instruments

Electrical musical tone generation

84621, 84663, G10H 1057

Patent

active

051499037

ABSTRACT:
A musical tone generating apparatus includes a waveform generator for generating a musical tone signal corresponding to a desired musical tone based on a key-on event which occurs in a keyboard and an envelope generator for generating an envelope which controls the amplitude of the musical tone signal in response to the key-on event. When a key-on event occurs, the envelope generator compares the current value of the envelope with a predetermined value, and based on the result of this comparison, determines a initial value of the next envelope corresponding to the key-on event. Consequently, the musical tone generating apparatus can generate musical tones without generating a click noise even if the key-on event repeatedly occurs over time at short intervals.

REFERENCES:
patent: 4928569 (1990-05-01), Kudo et al.
patent: 4958552 (1990-09-01), Minamitaka et al.
patent: 4972754 (1990-11-01), Choi

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