Electrical audio signal processing systems and devices – Sound effects – Tremelo or vibrato effects
Patent
1990-12-26
1991-09-17
Isen, Forester W.
Electrical audio signal processing systems and devices
Sound effects
Tremelo or vibrato effects
381 63, 84629, 84630, H03G 300
Patent
active
050502166
ABSTRACT:
An input waveform signal is converted in an A/D converter into a digital signal to be written in a waveform memory under control of a tone generation control unit. The written digital signal is read out from the waveform memory with a designated delay time. The input waveform signal and the digital signal read out from the waveform memory are converted in a D/A converter into analog signals which are fed through VCFs and VCAs so as to be sounded. Further, in the above arrangement the timbre and tone volume controls are done independently for the individual waveform read/write channels through VCFs 12a to 12d and VCAs 13a to 13d. Thus, it is possible to obtain a further effected sound.
REFERENCES:
patent: 3999458 (1976-12-01), Suzuki
patent: 4105864 (1978-08-01), Berkovitz
patent: 4148239 (1979-04-01), Oya et al.
patent: 4275267 (1981-06-01), Kurtin et al.
patent: 4303991 (1981-12-01), Moore
patent: 4389915 (1983-06-01), Bione
patent: 4569268 (1986-02-01), Futamase et al.
patent: 4581759 (1986-04-01), Takahashi
patent: 4584701 (1986-04-01), Nakama et al.
patent: 4586417 (1986-05-01), Kato et al.
patent: 4628789 (1986-12-01), Fujimori
patent: 4633749 (1987-01-01), Fujimori et al.
patent: 4667556 (1987-05-01), Hanzawa et al.
patent: 4681008 (1987-07-01), Morikawa et al.
patent: 4803731 (1989-02-01), Niimi et al.
patent: 4864625 (1989-09-01), Hanzawa et al.
Hanzawa Kohtaro
Morikawa Shigenori
Nakamura Kazuhisa
Casio Computer Co. Ltd.
Isen Forester W.
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