Music – Instruments – Electrical musical tone generation
Patent
1993-07-08
1994-09-06
Witkowski, Stanley J.
Music
Instruments
Electrical musical tone generation
G10H 106
Patent
active
053450353
ABSTRACT:
A musical tone generating apparatus, to be applied to an electronic musical instrument, provides at least a plurality of channels and a tone-color memory. Each channel contains one tone generator and two or more buffers. The number of the buffers provided in a plurality of channels is set smaller than the number of tone colors stored in the tone-color memory. Each of the buffers stores one tone color, so that the tone generator creates a musical tone signal responsive to the tone color stored in the buffer in accordance with musical tone information given from an external device such as a keyboard. The tone colors to be used in a tune to be performed can be freely assigned to the buffers in advance. Herein, all of the buffers are classified into two or more groups in accordance with a buffer-grouping priority, so that in a plurality of channels, when a musical-tone generation is assigned to a channel, one buffer given a higher priority is selected prior to another buffer. In a case where an automatic performance is played based on musical tone information read from a memory, the tone-color assignment to the buffers is determined responsive to a maximum number of the musical tones to be simultaneously produced with respect to each of the tone colors corresponding to the musical tone information. When a new musical-tone generation is designated, one of the channels is automatically selected in accordance with the buffer-grouping priority.
REFERENCES:
patent: 4984497 (1991-01-01), Inagaki et al.
Witkowski Stanley J.
Yamaha Corporation
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