Tone generating apparatus

Details Tone generating apparatus Tone generating apparatus

1991-04-09

1992-03-31

Witkowski, Stanley J.

Music

Instruments

Electrical musical tone generation

84660, 84663, G10H 1057, G10H 108, G10H 118

Patent

active

050997416

ABSTRACT:
A tone generating apparatus is provided with the same number of tone signal generating circuits as a polyphonic number, each of which generate multiple tone-component signals having a relatively long tone-ON time and combine the signals to produce a tone signal, and is also provided with the same number of tone signal generating circuits as a predetermined number smaller than the polyphonic number, the latter circuits each generating a tone-component signal having a relatively short tone-ON time. With this arrangement, when tone generation is specified by depression of a key, for example, generation of a musical tone having a relatively long tone-ON time is assigned to one of the former tone signal generating circuits, and, at the same time, generation of a musical tone having a relatively short tone-ON time is assigned to one of the latter tone signal generating circuits, thereby generating a single tone signal.

REFERENCES:
patent: 3924505 (1975-12-01), Schrecongost
patent: 4539883 (1985-09-01), Chihana

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