Musical tone-generating method and apparatus and waveform-storin

Details Musical tone-generating method and apparatus and waveform-storin Musical tone-generating method and apparatus and waveform-storin

1996-07-11

1998-02-03

Shoop, Jr., William M.

Music

Instruments

Electrical musical tone generation

84602, 84627, 84663, G10H 700

Patent

active

057147043

ABSTRACT:
A method of generating musical tones is provided. Data indicative of waveforms including at least a first predetermined waveform and a second predetermined waveform are stored in a first storage device such as a RAM. Data indicative of the first predetermined waveform and the second predetermined waveform are sequentially read from the first storage device, in response to a tone-generating command. The data indicative of the first predetermined waveform is read from the first storage device and stored in a second storage device, such as a cache memory, which is operable at a higher speed than the first storage device. The data indicative of the first predetermined waveform stored in the second storage device is repeatedly read from the second storage device, following the reading of the data indicative of the first predetermined waveform from the first storage device. Musical tones are generated based on the data read out by the first and second reading steps. Typically, the first predetermined waveform and the second predetermined waveform are a loop waveform and an attack waveform, respectively.

REFERENCES:
patent: 5194681 (1993-03-01), Kudo
patent: 5276850 (1994-01-01), Sakaue
patent: 5463183 (1995-10-01), Konno

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