Tone signal generation device of sampling type

Details Tone signal generation device of sampling type Tone signal generation device of sampling type

1986-10-16

1988-11-22

Witkowski, Stanley J.

Music

Instruments

84 124, 84 128, 84DIG10, 36472401, G10H 102, G10H 112, G10H 700

Patent

active

047857072

ABSTRACT:
In a tone signal generation device, original waveshape amplitude data corresponding to a waveshape signal from an external source is stored in a first memory. Waveshape data is read out from this first memory and is properly modified by a tone processing circuit such as a filter or a modulation effect circuit. The modified waveshape data is reserved in a second memory. The waveshape data stored in the second memory is selectively transferred to the first memory. In this manner, the original waveshape data initially stored in the first memory can be freely modified and a tone can be produced with a high degree of freedom as in a music synthesizer.

REFERENCES:
patent: 4176578 (1979-12-01), Campbell
patent: 4193332 (1980-03-01), Richardson
patent: 4215617 (1980-08-01), Moorer
patent: 4265157 (1981-05-01), Fricke et al.
patent: 4461199 (1984-07-01), Hiyoshi
patent: 4463650 (1984-08-01), Rupert
patent: 4596032 (1986-07-01), Sakurai
patent: 4602545 (1986-07-01), Starkey
patent: 4633748 (1987-01-01), Takashima

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